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-rw-r--r--users/wpcarro/emacs/.emacs.d/init.el15
-rw-r--r--users/wpcarro/emacs/.emacs.d/opam-user-setup.el145
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/c-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdio5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdlib5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/c-mode/struct7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/elisp-module-docs11
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/function8
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/generic-header7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/library-header7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/provide-footer6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/derive-safe-copy5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/import-qualified5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/instance-defn6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/language-extension5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/separator5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/undefined5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/html-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/html-mode/index-boilerplate18
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/java-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/java-mode/public-static-void-main7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/defpackage9
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/function7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/typed-function8
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/nix-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/nix-mode/shell-nix12
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/org-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/org-mode/code-snippet7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/org-mode/href5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/dunder-main6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/function6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/header7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/init6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/shebang6
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/python-mode/utf-85
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/racket-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/racket-mode/function5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda-symbol5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/reason-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/reason-mode/function7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/reason-mode/switch7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/action-extractor5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/console-log5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-defn5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-function7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/destructure-const5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow-function7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-destructured5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-react5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-type5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-x-from-y5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-y5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-describe-test10
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-test7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/react-class-component11
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/redux-action5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/typed-redux-action5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rust-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rust-mode/for-loop7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/rust-mode/match7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/sh-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/sh-mode/function7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/text-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/text-mode/check-mark5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/text-mode/x-mark5
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/web-mode/.yas-parents1
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/web-mode/header7
-rw-r--r--users/wpcarro/emacs/.emacs.d/snippets/web-mode/index-boilerplate18
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/>.el28
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/buffer.el174
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/clipboard.el40
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/constants.el29
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/display.el103
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/email.el76
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/fonts.el99
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/ivy-helpers.el67
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/kbd.el85
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/keybindings.el495
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/keyboard.el138
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/modeline.el68
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/prelude.el144
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/pulse-audio.el69
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/region.el23
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/screen-brightness.el57
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/scrot.el54
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/ssh.el67
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/window-manager.el228
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-clojure.el71
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-company.el41
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-dired.el51
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-dotnet.el16
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-elixir.el27
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-flycheck.el17
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-golang.el42
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-haskell.el53
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-javascript.el93
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-language-support.el36
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-lisp.el123
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-misc.el330
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-nix.el37
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-org.el39
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-package.el32
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-prolog.el19
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-python.el24
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-rust.el30
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-shell.el31
-rw-r--r--users/wpcarro/emacs/.emacs.d/wpc/wpc-ui.el186
-rw-r--r--users/wpcarro/emacs/AppIcon.icnsbin0 -> 449758 bytes
-rw-r--r--users/wpcarro/emacs/README.md15
-rw-r--r--users/wpcarro/emacs/ci.el44
-rw-r--r--users/wpcarro/emacs/default.nix265
-rw-r--r--users/wpcarro/emacs/elisp-conventions.md20
-rw-r--r--users/wpcarro/emacs/keybindings.md47
-rw-r--r--users/wpcarro/emacs/pkgs/al/al.el227
-rw-r--r--users/wpcarro/emacs/pkgs/al/default.nix28
-rw-r--r--users/wpcarro/emacs/pkgs/al/tests.el53
-rw-r--r--users/wpcarro/emacs/pkgs/bag/bag.el78
-rw-r--r--users/wpcarro/emacs/pkgs/bag/default.nix26
-rw-r--r--users/wpcarro/emacs/pkgs/bag/tests.el32
-rw-r--r--users/wpcarro/emacs/pkgs/bookmark/bookmark.el50
-rw-r--r--users/wpcarro/emacs/pkgs/bookmark/default.nix13
-rw-r--r--users/wpcarro/emacs/pkgs/bytes/bytes.el94
-rw-r--r--users/wpcarro/emacs/pkgs/bytes/default.nix25
-rw-r--r--users/wpcarro/emacs/pkgs/bytes/tests.el18
-rw-r--r--users/wpcarro/emacs/pkgs/cycle/README.md7
-rw-r--r--users/wpcarro/emacs/pkgs/cycle/cycle.el194
-rw-r--r--users/wpcarro/emacs/pkgs/cycle/default.nix36
-rw-r--r--users/wpcarro/emacs/pkgs/cycle/tests.el79
-rw-r--r--users/wpcarro/emacs/pkgs/fs/default.nix29
-rw-r--r--users/wpcarro/emacs/pkgs/fs/fs.el47
-rw-r--r--users/wpcarro/emacs/pkgs/fs/tests.el26
-rw-r--r--users/wpcarro/emacs/pkgs/list/README.md19
-rw-r--r--users/wpcarro/emacs/pkgs/list/default.nix26
-rw-r--r--users/wpcarro/emacs/pkgs/list/list.el219
-rw-r--r--users/wpcarro/emacs/pkgs/list/tests.el107
-rw-r--r--users/wpcarro/emacs/pkgs/macros/default.nix10
-rw-r--r--users/wpcarro/emacs/pkgs/macros/macros.el45
-rw-r--r--users/wpcarro/emacs/pkgs/math/default.nix30
-rw-r--r--users/wpcarro/emacs/pkgs/math/math.el63
-rw-r--r--users/wpcarro/emacs/pkgs/math/tests.el25
-rw-r--r--users/wpcarro/emacs/pkgs/maybe/default.nix24
-rw-r--r--users/wpcarro/emacs/pkgs/maybe/maybe.el54
-rw-r--r--users/wpcarro/emacs/pkgs/maybe/tests.el25
-rw-r--r--users/wpcarro/emacs/pkgs/passage/README.md12
-rw-r--r--users/wpcarro/emacs/pkgs/passage/default.nix12
-rw-r--r--users/wpcarro/emacs/pkgs/passage/passage.el65
-rw-r--r--users/wpcarro/emacs/pkgs/set/default.nix32
-rw-r--r--users/wpcarro/emacs/pkgs/set/set.el116
-rw-r--r--users/wpcarro/emacs/pkgs/set/tests.el69
-rw-r--r--users/wpcarro/emacs/pkgs/string/default.nix27
-rw-r--r--users/wpcarro/emacs/pkgs/string/string.el98
-rw-r--r--users/wpcarro/emacs/pkgs/string/tests.el22
-rw-r--r--users/wpcarro/emacs/pkgs/struct/README.md6
-rw-r--r--users/wpcarro/emacs/pkgs/struct/default.nix29
-rw-r--r--users/wpcarro/emacs/pkgs/struct/struct.el65
-rw-r--r--users/wpcarro/emacs/pkgs/struct/tests.el44
-rw-r--r--users/wpcarro/emacs/pkgs/symbol/default.nix24
-rw-r--r--users/wpcarro/emacs/pkgs/symbol/symbol.el38
-rw-r--r--users/wpcarro/emacs/pkgs/symbol/tests.el22
-rw-r--r--users/wpcarro/emacs/pkgs/theme/default.nix14
-rw-r--r--users/wpcarro/emacs/pkgs/theme/theme.el78
-rw-r--r--users/wpcarro/emacs/pkgs/tuple/default.nix10
-rw-r--r--users/wpcarro/emacs/pkgs/tuple/tuple.el93
-rw-r--r--users/wpcarro/emacs/pkgs/vector/default.nix21
-rw-r--r--users/wpcarro/emacs/pkgs/vector/tests.el20
-rw-r--r--users/wpcarro/emacs/pkgs/vector/vector.el58
-rw-r--r--users/wpcarro/emacs/pkgs/vterm-mgt/README.md17
-rw-r--r--users/wpcarro/emacs/pkgs/vterm-mgt/default.nix19
-rw-r--r--users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el140
-rw-r--r--users/wpcarro/emacs/pkgs/zle/default.nix10
-rw-r--r--users/wpcarro/emacs/pkgs/zle/zle.el90
-rw-r--r--users/wpcarro/emacs/snippets.md22
-rw-r--r--users/wpcarro/emacs/workspace.josh0
180 files changed, 7274 insertions, 0 deletions
diff --git a/users/wpcarro/emacs/.emacs.d/init.el b/users/wpcarro/emacs/.emacs.d/init.el
new file mode 100644
index 000000000000..5db74d36c70b
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/init.el
@@ -0,0 +1,15 @@
+;; load order is intentional
+(setq-default debug-on-error t)
+(require 'wpc-package)
+(require 'wpc-misc)
+(require 'ssh)
+(require 'keyboard)
+(require 'email)
+(require 'keybindings)
+(require 'window-manager)
+(require 'wpc-ui)
+(require 'wpc-dired)
+(require 'wpc-org)
+(require 'wpc-company)
+(require 'wpc-shell)
+(require 'wpc-language-support)
diff --git a/users/wpcarro/emacs/.emacs.d/opam-user-setup.el b/users/wpcarro/emacs/.emacs.d/opam-user-setup.el
new file mode 100644
index 000000000000..a23addefafe4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/opam-user-setup.el
@@ -0,0 +1,145 @@
+;; ## added by OPAM user-setup for emacs / base ## cfd3c9b7837c85cffd0c59de521990f0 ## you can edit, but keep this line
+(provide 'opam-user-setup)
+
+;; Base configuration for OPAM
+
+(defun opam-shell-command-to-string (command)
+  "Similar to shell-command-to-string, but returns nil unless the process
+  returned 0, and ignores stderr (shell-command-to-string ignores return value)"
+  (let* ((return-value 0)
+         (return-string
+          (with-output-to-string
+            (setq return-value
+                  (with-current-buffer standard-output
+                    (process-file shell-file-name nil '(t nil) nil
+                                  shell-command-switch command))))))
+    (if (= return-value 0) return-string nil)))
+
+(defun opam-update-env (switch)
+  "Update the environment to follow current OPAM switch configuration"
+  (interactive
+   (list
+    (let ((default
+            (car (split-string (opam-shell-command-to-string "opam switch show --safe")))))
+      (completing-read
+       (concat "opam switch (" default "): ")
+       (split-string (opam-shell-command-to-string "opam switch list -s --safe") "\n")
+       nil t nil nil default))))
+  (let* ((switch-arg (if (= 0 (length switch)) "" (concat "--switch " switch)))
+         (command (concat "opam config env --safe --sexp " switch-arg))
+         (env (opam-shell-command-to-string command)))
+    (when (and env (not (string= env "")))
+      (dolist (var (car (read-from-string env)))
+        (setenv (car var) (cadr var))
+        (when (string= (car var) "PATH")
+          (setq exec-path (split-string (cadr var) path-separator)))))))
+
+(opam-update-env nil)
+
+(defvar opam-share
+  (let ((reply (opam-shell-command-to-string "opam config var share --safe")))
+    (when reply (substring reply 0 -1))))
+
+(add-to-list 'load-path (concat opam-share "/emacs/site-lisp"))
+;; OPAM-installed tools automated detection and initialisation
+
+(defun opam-setup-tuareg ()
+  (add-to-list 'load-path (concat opam-share "/tuareg") t)
+  (load "tuareg-site-file"))
+
+(defun opam-setup-add-ocaml-hook (h)
+  (add-hook 'tuareg-mode-hook h t)
+  (add-hook 'caml-mode-hook h t))
+
+(defun opam-setup-complete ()
+  (if (require 'company nil t)
+    (opam-setup-add-ocaml-hook
+      (lambda ()
+         (company-mode)
+         (defalias 'auto-complete 'company-complete)))
+    (require 'auto-complete nil t)))
+
+(defun opam-setup-ocp-indent ()
+  (opam-setup-complete)
+  (autoload 'ocp-setup-indent "ocp-indent" "Improved indentation for Tuareg mode")
+  (autoload 'ocp-indent-caml-mode-setup "ocp-indent" "Improved indentation for Caml mode")
+  (add-hook 'tuareg-mode-hook 'ocp-setup-indent t)
+  (add-hook 'caml-mode-hook 'ocp-indent-caml-mode-setup  t))
+
+(defun opam-setup-ocp-index ()
+  (autoload 'ocp-index-mode "ocp-index" "OCaml code browsing, documentation and completion based on build artefacts")
+  (opam-setup-add-ocaml-hook 'ocp-index-mode))
+
+(defun opam-setup-merlin ()
+  (opam-setup-complete)
+  (require 'merlin)
+  (opam-setup-add-ocaml-hook 'merlin-mode)
+
+  (defcustom ocp-index-use-auto-complete nil
+    "Use auto-complete with ocp-index (disabled by default by opam-user-setup because merlin is in use)"
+    :group 'ocp_index)
+  (defcustom merlin-ac-setup 'easy
+    "Use auto-complete with merlin (enabled by default by opam-user-setup)"
+    :group 'merlin-ac)
+
+  ;; So you can do it on a mac, where `C-<up>` and `C-<down>` are used
+  ;; by spaces.
+  (define-key merlin-mode-map
+    (kbd "C-c <up>") 'merlin-type-enclosing-go-up)
+  (define-key merlin-mode-map
+    (kbd "C-c <down>") 'merlin-type-enclosing-go-down)
+  (set-face-background 'merlin-type-face "skyblue"))
+
+(defun opam-setup-utop ()
+  (autoload 'utop "utop" "Toplevel for OCaml" t)
+  (autoload 'utop-minor-mode "utop" "Minor mode for utop" t)
+  (add-hook 'tuareg-mode-hook 'utop-minor-mode))
+
+(defvar opam-tools
+  '(("tuareg" . opam-setup-tuareg)
+    ("ocp-indent" . opam-setup-ocp-indent)
+    ("ocp-index" . opam-setup-ocp-index)
+    ("merlin" . opam-setup-merlin)
+    ("utop" . opam-setup-utop)))
+
+(defun opam-detect-installed-tools ()
+  (let*
+      ((command "opam list --installed --short --safe --color=never")
+       (names (mapcar 'car opam-tools))
+       (command-string (mapconcat 'identity (cons command names) " "))
+       (reply (opam-shell-command-to-string command-string)))
+    (when reply (split-string reply))))
+
+(defvar opam-tools-installed (opam-detect-installed-tools))
+
+(defun opam-auto-tools-setup ()
+  (interactive)
+  (dolist (tool opam-tools)
+    (when (member (car tool) opam-tools-installed)
+     (funcall (symbol-function (cdr tool))))))
+
+(opam-auto-tools-setup)
+;; ## end of OPAM user-setup addition for emacs / base ## keep this line
+;; ## added by OPAM user-setup for emacs / tuareg ## b10f42abebd2259b784b70d1a7f7e426 ## you can edit, but keep this line
+;; Set to autoload tuareg from its original switch when not found in current
+;; switch (don't load tuareg-site-file as it adds unwanted load-paths)
+(defun opam-tuareg-autoload (fct file doc args)
+  (let ((load-path (cons "/home/wpcarro/.opam/default/share/emacs/site-lisp" load-path)))
+    (load file))
+  (apply fct args))
+(when (not (member "tuareg" opam-tools-installed))
+  (defun tuareg-mode (&rest args)
+    (opam-tuareg-autoload 'tuareg-mode "tuareg" "Major mode for editing OCaml code" args))
+  (defun tuareg-run-ocaml (&rest args)
+    (opam-tuareg-autoload 'tuareg-run-ocaml "tuareg" "Run an OCaml toplevel process" args))
+  (defun ocamldebug (&rest args)
+    (opam-tuareg-autoload 'ocamldebug "ocamldebug" "Run the OCaml debugger" args))
+  (defalias 'run-ocaml 'tuareg-run-ocaml)
+  (defalias 'camldebug 'ocamldebug)
+  (add-to-list 'auto-mode-alist '("\\.ml[iylp]?\\'" . tuareg-mode))
+  (add-to-list 'auto-mode-alist '("\\.eliomi?\\'" . tuareg-mode))
+  (add-to-list 'interpreter-mode-alist '("ocamlrun" . tuareg-mode))
+  (add-to-list 'interpreter-mode-alist '("ocaml" . tuareg-mode))
+  (dolist (ext '(".cmo" ".cmx" ".cma" ".cmxa" ".cmxs" ".cmt" ".cmti" ".cmi" ".annot"))
+    (add-to-list 'completion-ignored-extensions ext)))
+;; ## end of OPAM user-setup addition for emacs / tuareg ## keep this line
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/c-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdio b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdio
new file mode 100644
index 000000000000..52bc717e470e
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdio
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: <stdio.h>
+# key: sio
+# --
+#include <stdio.h>
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdlib b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdlib
new file mode 100644
index 000000000000..5d44e8ed7989
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/stdlib
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: <stdlib.h>
+# key: slb
+# --
+#include <stdlib.h>
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/c-mode/struct b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/struct
new file mode 100644
index 000000000000..6e9282f83c79
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/c-mode/struct
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: struct
+# key: struct
+# --
+typedef struct $1 {
+  $2
+} $1_t;
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/elisp-module-docs b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/elisp-module-docs
new file mode 100644
index 000000000000..8ea7b8f07724
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/elisp-module-docs
@@ -0,0 +1,11 @@
+# -*- mode: snippet -*-
+# name: Elisp module docs
+# key: emd
+# --
+;;; `(-> (buffer-file-name) f-filename)` --- $2 -*- lexical-binding: t -*-
+;; Author: William Carroll <wpcarro@gmail.com>
+
+;;; Commentary:
+;; $3
+
+;;; Code:
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/function
new file mode 100644
index 000000000000..bfa888d5265d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/function
@@ -0,0 +1,8 @@
+# -*- mode: snippet -*-
+# name: Function
+# key: fn
+# expand-env: ((yas-indent-line 'fixed))
+# --
+(defun $1 ($2)
+  "$3"
+  $4)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/generic-header b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/generic-header
new file mode 100644
index 000000000000..bf6e525f8c65
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/generic-header
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Header
+# key: hdr
+# --
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; $1
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/library-header b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/library-header
new file mode 100644
index 000000000000..0f0ad5c4fc4e
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/library-header
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Library header
+# key: lib
+# --
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/provide-footer b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/provide-footer
new file mode 100644
index 000000000000..2a0bcc33f7bb
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/emacs-lisp-mode/provide-footer
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: Provide footer
+# key: elf
+# --
+(provide '`(-> (buffer-file-name) f-filename f-no-ext)`)
+;;; `(-> (buffer-file-name) f-filename)` ends here
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/derive-safe-copy b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/derive-safe-copy
new file mode 100644
index 000000000000..95f7d9deecd0
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/derive-safe-copy
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Derive Safe Copy
+# key: dsc
+# --
+deriveSafeCopy 0 'base ''$1
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/import-qualified b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/import-qualified
new file mode 100644
index 000000000000..4c4db62a8a47
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/import-qualified
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Import qualified
+# key: iq
+# --
+import qualified $1 as $2
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/instance-defn b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/instance-defn
new file mode 100644
index 000000000000..10d194ce41f0
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/instance-defn
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: Instance
+# key: inst
+# --
+instance $1 where
+  $2 = $3
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/language-extension b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/language-extension
new file mode 100644
index 000000000000..9d6084acb40d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/language-extension
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: language extension
+# key: lang
+# --
+{-# LANGUAGE $1 #-}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/separator b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/separator
new file mode 100644
index 000000000000..1ab0d762b611
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/separator
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Separator
+# key: -
+# --
+--------------------------------------------------------------------------------
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/undefined b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/undefined
new file mode 100644
index 000000000000..7609f801f278
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/haskell-mode/undefined
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Undefiend
+# key: nd
+# --
+undefined
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/html-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/html-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/html-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/html-mode/index-boilerplate b/users/wpcarro/emacs/.emacs.d/snippets/html-mode/index-boilerplate
new file mode 100644
index 000000000000..3cea6ce003ba
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/html-mode/index-boilerplate
@@ -0,0 +1,18 @@
+# -*- mode: snippet -*-
+# name: HTML index.html starter
+# key: html
+# --
+<!doctype html>
+
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>$1</title>
+  <meta name="description" content="$2">
+  <meta name="author" content="William Carroll">
+  <link rel="stylesheet" href="index.css">
+</head>
+<body>
+  <script src="index.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/java-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/java-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/java-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/java-mode/public-static-void-main b/users/wpcarro/emacs/.emacs.d/snippets/java-mode/public-static-void-main
new file mode 100644
index 000000000000..1839a27eb5c0
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/java-mode/public-static-void-main
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: public static void main
+# key: psvm
+# --
+public static void main(String[] args) {
+    $1
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/defpackage b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/defpackage
new file mode 100644
index 000000000000..7f110a9718e4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/defpackage
@@ -0,0 +1,9 @@
+# -*- mode: snippet -*-
+# name: Define package
+# key: defp
+# --
+(in-package #:cl-user)
+(defpackage #:$1
+  (:documentation "$2")
+  (:use #:cl))
+(in-package #:$1)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/function
new file mode 100644
index 000000000000..b1769cd3d102
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/function
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Function
+# key: fn
+# --
+(defun $1 ($2)
+  "$3"
+  $4)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/typed-function b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/typed-function
new file mode 100644
index 000000000000..a3c236821e06
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/lisp-mode/typed-function
@@ -0,0 +1,8 @@
+# -*- mode: snippet -*-
+# name: Typed function
+# key: tfn
+# --
+(type $1 ($3) $4)
+(defun $1 ($2)
+  "$5"
+  $6)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/shell-nix b/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/shell-nix
new file mode 100644
index 000000000000..b5eb5a244721
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/nix-mode/shell-nix
@@ -0,0 +1,12 @@
+# -*- mode: snippet -*-
+# name: shell.nix boilerplate
+# key: import
+# --
+{ pkgs, ... }:
+
+pkgs.stdenv.mkDerivation {
+  name = "$1";
+  buildInputs = [
+    $2
+  ];
+}
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/org-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/org-mode/code-snippet b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/code-snippet
new file mode 100644
index 000000000000..4215b15992b6
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/code-snippet
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Code Snippet
+# key: src
+# --
+#+BEGIN_SRC $1
+$2
+#+END_SRC
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/org-mode/href b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/href
new file mode 100644
index 000000000000..ac65ea2e49be
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/org-mode/href
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Org mode URL
+# key: href
+# --
+[[$1][$2]]
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/dunder-main b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/dunder-main
new file mode 100644
index 000000000000..4dd22dc0b2da
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/dunder-main
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: Dunder main (__main__)
+# key: mn
+# --
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/function
new file mode 100644
index 000000000000..379ceda1a3a6
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/function
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: Function
+# key: fn
+# --
+def $1($2):
+    $3
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/header b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/header
new file mode 100644
index 000000000000..db48adfec737
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/header
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Header
+# key: hdr
+# --
+################################################################################
+# $1
+################################################################################
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/init b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/init
new file mode 100644
index 000000000000..5c407495f53a
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/init
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: dunder init
+# key: ctor
+# --
+def __init__(self$1):
+    $2
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/shebang b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/shebang
new file mode 100644
index 000000000000..0f45ae782d32
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/shebang
@@ -0,0 +1,6 @@
+# -*- mode: snippet -*-
+# name: shebang
+# key: shb
+# --
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/python-mode/utf-8 b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/utf-8
new file mode 100644
index 000000000000..3babc730305a
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/python-mode/utf-8
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: utf-8
+# key: utf
+# --
+# -*- coding: utf-8 -*-
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/function
new file mode 100644
index 000000000000..882c48ded39d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/function
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Function
+# key: fn
+# --
+(define ($1) $2)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda
new file mode 100644
index 000000000000..b9a684588bc4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Lambda function
+# key: ld
+# --
+(ฮป ($1) $2)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda-symbol b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda-symbol
new file mode 100644
index 000000000000..254b9fd96b18
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/racket-mode/lambda-symbol
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Lambda symbol
+# key: l
+# --
+ฮป
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/function
new file mode 100644
index 000000000000..6b4b6a5db2a7
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/function
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Function
+# key: fn
+# --
+let $1 = (~$2:$3) => {
+  $4
+};
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/switch b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/switch
new file mode 100644
index 000000000000..40f34ff8d1f1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/reason-mode/switch
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Switch statement
+# key: sw
+# --
+switch ($1) {
+| $2 =>
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/action-extractor b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/action-extractor
new file mode 100644
index 000000000000..62834a29ab04
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/action-extractor
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: exactness
+# key: $x
+# --
+$Exact<$Call<typeof $1>>
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/console-log b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/console-log
new file mode 100644
index 000000000000..82ec3fd8e379
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/console-log
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Console.log helper
+# key: clg
+# --
+console.log($1)
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-defn b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-defn
new file mode 100644
index 000000000000..8e35e61fc2c4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-defn
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: const definition
+# key: cn
+# --
+const $1 = '$2'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-function b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-function
new file mode 100644
index 000000000000..13f2018f2269
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/const-function
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: const function
+# key: cfn
+# --
+const $1 = ($2) => {
+  $3
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/destructure-const b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/destructure-const
new file mode 100644
index 000000000000..2a52c57c75cd
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/destructure-const
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Destructuring a const
+# key: cds
+# --
+const { $1 } = $2
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow
new file mode 100644
index 000000000000..187a2efc5a7c
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Fat arrow function
+# key: fa
+# --
+=>
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow-function b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow-function
new file mode 100644
index 000000000000..694914a83c95
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/fat-arrow-function
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Fat arrow function
+# key: faf
+# --
+() => {
+  $1
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-destructured b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-destructured
new file mode 100644
index 000000000000..ded3ce163a93
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-destructured
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Import destructured
+# key: ids
+# --
+import { $1 } from '$2'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-react b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-react
new file mode 100644
index 000000000000..0463f5cd5593
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-react
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Import React dependency (ES6)
+# key: ir
+# --
+import React from 'react'
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-type b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-type
new file mode 100644
index 000000000000..fcd51f687b61
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-type
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: import type
+# key: ixt
+# --
+import type { $1 } from '$2'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-x-from-y b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-x-from-y
new file mode 100644
index 000000000000..09fa6df50506
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-x-from-y
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: import x from y
+# key: ix
+# --
+import $1 from '$2'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-y b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-y
new file mode 100644
index 000000000000..9f550e300d12
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/import-y
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: import y
+# key: iy
+# --
+import '$1'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-describe-test b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-describe-test
new file mode 100644
index 000000000000..ed382d4f74c4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-describe-test
@@ -0,0 +1,10 @@
+# -*- mode: snippet -*-
+# name: Jest describe/test block
+# key: dsc
+# --
+describe('$1', () => {
+  test('$2', () => {
+
+    expect($3).toEqual($4)
+  })
+})
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-test b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-test
new file mode 100644
index 000000000000..12ca2e786ded
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/jest-test
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Jest / Jasmine test
+# key: tst
+# --
+test('$1', () => {
+  expect($2).toBe($3)
+})
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/react-class-component b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/react-class-component
new file mode 100644
index 000000000000..f2a93a31d96d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/react-class-component
@@ -0,0 +1,11 @@
+# -*- mode: snippet -*-
+# name: React class extends
+# key: clz
+# --
+class $1 extends React.Component {
+  render() {
+    $2
+  }
+}
+
+export default $1
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/redux-action b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/redux-action
new file mode 100644
index 000000000000..681c5d0dfdf4
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/redux-action
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: redux-action
+# key: rax
+# --
+export const ${1:$$(string-lower->caps yas-text)} = '`(downcase (functions-buffer-dirname))`/${1:$(string-caps->kebab yas-text)}'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/typed-redux-action b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/typed-redux-action
new file mode 100644
index 000000000000..53c6e5fc5ac2
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rjsx-mode/typed-redux-action
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: typed-redux-action
+# key: trax
+# --
+export const ${1:$$(string-lower->caps yas-text)}: '`(downcase (functions-buffer-dirname))`/${1:$(string-caps->kebab yas-text)}' = '`(downcase (buffer-dirname))`/${1:$(string-caps->kebab yas-text)}'
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/for-loop b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/for-loop
new file mode 100644
index 000000000000..4d8e0e3bbd24
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/for-loop
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: for-loop
+# key: for
+# --
+for $1 in $2 {
+    $3
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/match b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/match
new file mode 100644
index 000000000000..bf0e876e2b98
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/rust-mode/match
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: match
+# key: match
+# --
+match $1 {
+    $2 => $3,
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/function b/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/function
new file mode 100644
index 000000000000..efa946bb272f
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/sh-mode/function
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Create function
+# key: fn
+# --
+$1() {
+  $2
+}
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/text-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/text-mode/check-mark b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/check-mark
new file mode 100644
index 000000000000..797781968881
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/check-mark
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Unicode checkmark
+# key: uck
+# --
+โœ“
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/text-mode/x-mark b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/x-mark
new file mode 100644
index 000000000000..bc3c356a6157
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/text-mode/x-mark
@@ -0,0 +1,5 @@
+# -*- mode: snippet -*-
+# name: Unicode ex-mark
+# key: ux
+# --
+โœ—
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/web-mode/.yas-parents b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/.yas-parents
new file mode 100644
index 000000000000..d58dacb7a0b1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/.yas-parents
@@ -0,0 +1 @@
+text-mode
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/web-mode/header b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/header
new file mode 100644
index 000000000000..ae59c7a50f9c
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/header
@@ -0,0 +1,7 @@
+# -*- mode: snippet -*-
+# name: Header
+# key: hdr
+# --
+/*******************************************************************************
+ * $1
+ ******************************************************************************/
\ No newline at end of file
diff --git a/users/wpcarro/emacs/.emacs.d/snippets/web-mode/index-boilerplate b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/index-boilerplate
new file mode 100644
index 000000000000..b791cdf86fe5
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/snippets/web-mode/index-boilerplate
@@ -0,0 +1,18 @@
+# -*- mode: snippet -*-
+# name: HTML index.html starter
+# key: html
+# --
+<!doctype html>
+
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>$1</title>
+  <meta name="description" content="$2">
+  <meta name="author" content="William Carroll">
+  <link rel="stylesheet" href="index.css">
+</head>
+<body>
+  <script src="index.js"></script>
+</body>
+</html>
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/>.el b/users/wpcarro/emacs/.emacs.d/wpc/>.el
new file mode 100644
index 000000000000..6d5f86f8b4e6
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/>.el
@@ -0,0 +1,28 @@
+;;; >.el --- Small utility functions -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Originally I stored the `>>` macro in macros.el, but after setting up linting
+;; for my Elisp in CI, `>>` failed because it didn't have the `macros-`
+;; namespace.  I created this module to establish a `>-` namespace under which I
+;; can store some utilities that would be best kept without a cumbersome
+;; namespace.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defmacro >-> (&rest forms)
+  "Compose a new, point-free function by composing FORMS together."
+  (let ((sym (gensym)))
+    `(lambda (,sym)
+       (->> ,sym ,@forms))))
+
+
+(provide '>)
+;;; >.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/buffer.el b/users/wpcarro/emacs/.emacs.d/wpc/buffer.el
new file mode 100644
index 000000000000..0f86f7f811e6
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/buffer.el
@@ -0,0 +1,174 @@
+;;; buffer.el --- Working with buffers -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Utilities for CRUDing buffers in Emacs.
+;;
+;; Many of these functions may seem unnecessary especially when you consider
+;; there implementations.  In general I believe that Elisp suffers from a
+;; library disorganization problem.  Providing simple wrapper functions that
+;; rename functions or reorder parameters is worth the effort in my opinion if
+;; it improves discoverability (via intuition) and improve composability.
+;;
+;; I support three ways for switching between what I'm calling "source code
+;; buffers":
+;; 1. Toggling previous: <SPC><SPC>
+;; 2. Using `ivy-read': <SPC>b
+;; TODO: These obscure evil KBDs.  Maybe a hydra definition would be best?
+;; 3. Cycling (forwards/backwards): C-f, C-b
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'maybe)
+(require 'set)
+(require 'cycle)
+(require 'struct)
+(require 'ts)
+(require 'general)
+(require 'list)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst buffer-source-code-blacklist
+  (set-new 'dired-mode
+           'erc-mode
+           'vterm-mode
+           'magit-status-mode
+           'magit-process-mode
+           'magit-log-mode
+           'magit-diff-mode
+           'org-mode
+           'fundamental-mode)
+  "A blacklist of major-modes to ignore for listing source code buffers.")
+
+(defconst buffer-ivy-source-code-whitelist '("*scratch*" "*Messages*")
+  "A whitelist of buffers to include when listing source code buffers.")
+
+(defconst buffer-source-code-timeout 2
+  "Number of seconds to wait before invalidating the cycle.")
+
+(cl-defstruct source-code-cycle cycle last-called)
+
+(defun buffer-emacs-generated? (name)
+  "Return t if buffer, NAME, is an Emacs-generated buffer.
+Some buffers are Emacs-generated but are surrounded by whitespace."
+  (let ((trimmed (s-trim name)))
+    (and (s-starts-with? "*" trimmed))))
+
+(defun buffer-find (buffer-or-name)
+  "Find a buffer by its BUFFER-OR-NAME."
+  (get-buffer buffer-or-name))
+
+(defun buffer-major-mode (name)
+  "Return the active `major-mode' in buffer, NAME."
+  (with-current-buffer (buffer-find name)
+    major-mode))
+
+(defun buffer-source-code-buffers ()
+  "Return a list of source code buffers.
+This will ignore Emacs-generated buffers, like *Messages*.  It will also ignore
+  any buffer whose major mode is defined in `buffer-source-code-blacklist'."
+  (->> (buffer-list)
+       (list-map #'buffer-name)
+       (list-reject #'buffer-emacs-generated?)
+       (list-reject (lambda (name)
+                      (set-contains? (buffer-major-mode name)
+                                     buffer-source-code-blacklist)))))
+
+(defvar buffer-source-code-cycle-state
+  (make-source-code-cycle
+   :cycle (cycle-from-list (buffer-source-code-buffers))
+   :last-called (ts-now))
+  "State used to manage cycling between source code buffers.")
+
+(defun buffer-exists? (name)
+  "Return t if buffer, NAME, exists."
+  (maybe-some? (buffer-find name)))
+
+(defun buffer-new (name)
+  "Return a newly created buffer NAME."
+  (generate-new-buffer name))
+
+(defun buffer-find-or-create (name)
+  "Find or create buffer, NAME.
+Return a reference to that buffer."
+  (let ((x (buffer-find name)))
+    (if (maybe-some? x)
+        x
+      (buffer-new name))))
+
+;; TODO: Should this consume: `display-buffer' or `switch-to-buffer'?
+(defun buffer-show (buffer-or-name)
+  "Display the BUFFER-OR-NAME, which is either a buffer reference or its name."
+  (display-buffer buffer-or-name))
+
+;; TODO: Move this and `buffer-cycle-prev' into a separate module that
+;; encapsulates all of this behavior.
+
+(defun buffer-cycle (cycle-fn)
+  "Using CYCLE-FN, move through `buffer-source-code-buffers'."
+  (let ((last-called (source-code-cycle-last-called
+                      buffer-source-code-cycle-state))
+        (cycle (source-code-cycle-cycle
+                buffer-source-code-cycle-state)))
+    (if (> (ts-diff (ts-now) last-called)
+           buffer-source-code-timeout)
+        (progn
+          (struct-set! source-code-cycle
+                       cycle
+                       (cycle-from-list (buffer-source-code-buffers))
+                       buffer-source-code-cycle-state)
+          (let ((cycle (source-code-cycle-cycle
+                        buffer-source-code-cycle-state)))
+            (funcall cycle-fn cycle)
+            (switch-to-buffer (cycle-current cycle)))
+          (struct-set! source-code-cycle
+                       last-called
+                       (ts-now)
+                       buffer-source-code-cycle-state))
+      (progn
+        (funcall cycle-fn cycle)
+        (switch-to-buffer (cycle-current cycle))))))
+
+(defun buffer-cycle-next ()
+  "Cycle forward through the `buffer-source-code-buffers'."
+  (interactive)
+  (buffer-cycle #'cycle-next!))
+
+(defun buffer-cycle-prev ()
+  "Cycle backward through the `buffer-source-code-buffers'."
+  (interactive)
+  (buffer-cycle #'cycle-prev!))
+
+(defun buffer-ivy-source-code ()
+  "Use `ivy-read' to choose among all open source code buffers."
+  (interactive)
+  (ivy-read "Source code buffer: "
+            (-concat buffer-ivy-source-code-whitelist
+                     (-drop 1 (buffer-source-code-buffers)))
+            :sort nil
+            :action #'switch-to-buffer))
+
+(defun buffer-show-previous ()
+  "Call `switch-to-buffer' on the previously visited buffer.
+This function ignores Emacs-generated buffers, i.e. the ones that look like
+  this: *Buffer*.  It also ignores buffers that are `dired-mode' or `erc-mode'.
+  This blacklist can easily be changed."
+  (interactive)
+  (let* ((xs (buffer-source-code-buffers))
+         (candidate (list-get 1 xs)))
+    (prelude-assert (maybe-some? candidate))
+    (switch-to-buffer candidate)))
+
+(provide 'buffer)
+;;; buffer.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/clipboard.el b/users/wpcarro/emacs/.emacs.d/wpc/clipboard.el
new file mode 100644
index 000000000000..ec2a46f5404f
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/clipboard.el
@@ -0,0 +1,40 @@
+;;; clipboard.el --- Working with X11's pasteboard -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Simple functions for copying and pasting.
+;;
+;; Integrate with bburns/clipmon so that System Clipboard can integrate with
+;; Emacs's kill-ring.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defun clipboard-copy (x &key (message "[clipboard.el] Copied!"))
+  "Copy string, X, to X11's clipboard and `message' MESSAGE."
+  (kill-new x)
+  (message message))
+
+(cl-defun clipboard-paste (&key (message "[clipboard.el] Pasted!"))
+  "Paste contents of X11 clipboard and `message' MESSAGE."
+  (yank)
+  (message message))
+
+(defun clipboard-contents ()
+  "Return the contents of the clipboard as a string."
+  (substring-no-properties (current-kill 0)))
+
+(provide 'clipboard)
+;;; clipboard.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/constants.el b/users/wpcarro/emacs/.emacs.d/wpc/constants.el
new file mode 100644
index 000000000000..48bcd9042f78
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/constants.el
@@ -0,0 +1,29 @@
+;;; constants.el --- Constants for organizing my Elisp -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; This file contains constants that are shared across my configuration.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'maybe)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst constants-ci? (maybe-some? (getenv "CI"))
+  "Defined as t when Emacs is running in CI.")
+
+(defconst constants-osx? (eq system-type 'darwin)
+  "Defined as t when OSX is running.")
+
+(provide 'constants)
+;;; constants.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/display.el b/users/wpcarro/emacs/.emacs.d/wpc/display.el
new file mode 100644
index 000000000000..69dae6939e40
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/display.el
@@ -0,0 +1,103 @@
+;;; display.el --- Working with single or multiple displays -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Mostly wrappers around xrandr.
+;;
+;; Troubleshooting:
+;; The following commands help me when I (infrequently) interact with xrandr.
+;; - xrandr --listmonitors
+;; - xrandr --query
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'dash)
+(require 's)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defmacro display-register (name &key
+                                    output
+                                    primary
+                                    coords
+                                    size
+                                    rate
+                                    dpi
+                                    rotate)
+  "Macro to define constants and two functions for {en,dis}abling a display.
+
+NAME    - the human-readable identifier for the display
+OUTPUT  - the xrandr identifier for the display
+PRIMARY - if true, send --primary flag to xrandr
+COORDS  - X and Y offsets
+SIZE    - the pixel resolution of the display (width height)
+RATE    - the refresh rate
+DPI     - the pixel density in dots per square inch
+rotate  - one of {normal,left,right,inverted}
+
+See the man-page for xrandr for more details."
+  `(progn
+     (defconst ,(intern (format "display-%s" name)) ,output
+       ,(format "The xrandr identifier for %s" name))
+     (defconst ,(intern (format "display-%s-args" name))
+       ,(replace-regexp-in-string
+         "\s+" " "
+         (s-format "--output ${output} ${primary-flag} --auto \
+                    --size ${size-x}x${size-y} --rate ${rate} --dpi ${dpi} \
+                    --rotate ${rotate} ${pos-flag}"
+                   #'aget
+                   `(("output" . ,output)
+                     ("primary-flag" . ,(if primary "--primary" "--noprimary"))
+                     ("pos-flag" . ,(if coords
+                                        (format "--pos %dx%d"
+                                                (car coords)
+                                                (cadr coords))
+                                      ""))
+                     ("size-x" . ,(car size))
+                     ("size-y" . ,(cadr size))
+                     ("rate" . ,rate)
+                     ("dpi" . ,dpi)
+                     ("rotate" . ,rotate))))
+       ,(format "The arguments we pass to xrandr for display-%s." name))
+     (defconst ,(intern (format "display-%s-command" name))
+       (format "xrandr %s" ,(intern (format "display-%s-args" name)))
+       ,(format "The command we run to configure %s" name))
+     (defun ,(intern (format "display-enable-%s" name)) ()
+       ,(format "Attempt to enable my %s monitor" name)
+       (interactive)
+       (prelude-start-process
+        :name ,(format "display-enable-%s" name)
+        :command ,(intern (format "display-%s-command" name))))
+     (defun ,(intern (format "display-disable-%s" name)) ()
+       ,(format "Attempt to disable my %s monitor." name)
+       (interactive)
+       (prelude-start-process
+        :name ,(format "display-disable-%s" name)
+        :command ,(format
+                   "xrandr --output %s --off"
+                   output)))))
+
+(defmacro display-arrangement (name &key displays)
+  "Create a function, display-arrange-<NAME>, to enable all your DISPLAYS."
+  `(defun ,(intern (format "display-arrange-%s" name)) ()
+     (interactive)
+     (prelude-start-process
+      :name ,(format "display-configure-%s" name)
+      :command ,(format "xrandr %s"
+                        (->> displays
+                             (-map (lambda (x)
+                                     (eval (intern (format "display-%s-args" x)))))
+                             (s-join " "))))))
+
+(provide 'display)
+;;; display.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/email.el b/users/wpcarro/emacs/.emacs.d/wpc/email.el
new file mode 100644
index 000000000000..a83ca25e6c17
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/email.el
@@ -0,0 +1,76 @@
+;;; email.el --- My email settings -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Attempting to configure to `notmuch' for my personal use.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'notmuch)
+(require 'list)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(setq notmuch-saved-searches
+      '((:name "inbox" :query "tag:inbox" :key "i")
+        (:name "direct"
+         :query "tag:direct and tag:unread and not tag:sent"
+         :key "d")
+        (:name "action" :query "tag:action" :key "a")
+        (:name "review" :query "tag:review" :key "r")
+        (:name "waiting" :query "tag:waiting" :key "w")
+        (:name "broadcast" :query "tag:/broadcast\/.+/ and tag:unread" :key "b")
+        (:name "systems" :query "tag:/systems\/.+/ and tag:unread" :key "s")
+        (:name "sent" :query "tag:sent" :key "t")
+        (:name "drafts" :query "tag:draft" :key "D")))
+
+;; Sort results from newest-to-oldest.
+(setq notmuch-search-oldest-first nil)
+
+;; Discard noisy email signatures.
+(setq notmuch-mua-cite-function #'message-cite-original-without-signature)
+
+;; By default, this is just '("-inbox")
+(setq notmuch-archive-tags '("-inbox" "-unread" "+archive"))
+
+;; Show saved searches even when they're empty.
+(setq notmuch-show-empty-saved-searches t)
+
+;; Currently the sendmail executable on my system is symlinked to msmtp.
+(setq send-mail-function #'sendmail-send-it)
+
+;; I'm not sure if I need this or not. Copying it from tazjin@'s monorepo.
+(setq notmuch-always-prompt-for-sender nil)
+
+;; Add the "User-Agent" header to my emails and ensure that it includes Emacs
+;; and notmuch information.
+(setq notmuch-mua-user-agent-function
+      (lambda ()
+        (format "Emacs %s; notmuch.el %s" emacs-version notmuch-emacs-version)))
+
+;; I was informed that Gmail does this server-side
+(setq notmuch-fcc-dirs nil)
+
+;; Ensure buffers are closed after sending mail.
+(setq message-kill-buffer-on-exit t)
+
+;; Ensure sender is correctly passed to msmtp.
+(setq mail-specify-envelope-from t
+      message-sendmail-envelope-from 'header
+      mail-envelope-from 'header)
+
+;; Assert that no two saved searches share share a KBD
+(prelude-assert
+ (list-xs-distinct-by? (lambda (x) (plist-get x :key)) notmuch-saved-searches))
+
+(provide 'email)
+;;; email.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/fonts.el b/users/wpcarro/emacs/.emacs.d/wpc/fonts.el
new file mode 100644
index 000000000000..0f70f69c2b8d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/fonts.el
@@ -0,0 +1,99 @@
+;;; fonts.el --- Font preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Control my font preferences with ELisp.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'maybe)
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defgroup fonts nil
+  "Customize group for fonts configuration.")
+
+(defcustom fonts-size "10"
+  "My preferred default font-size."
+  :group 'fonts)
+
+(defcustom fonts-size-step 10
+  "The amount (%) by which to increase or decrease a font."
+  :group 'fonts)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun fonts-set (font &optional size)
+  "Change the font to `FONT' with option integer, SIZE, in pixels."
+  (if (maybe-some? size)
+      (set-frame-font (string-format "%s %s" font size) nil t)
+    (set-frame-font font nil t)))
+
+(defun fonts-current ()
+  "Return the currently enabled font."
+  (symbol-name (font-get (face-attribute 'default :font) :family)))
+
+(defun fonts-increase-size ()
+  "Increase font size."
+  (interactive)
+  (->> (face-attribute 'default :height)
+       (+ fonts-size-step)
+       (set-face-attribute 'default (selected-frame) :height)))
+
+(defun fonts-decrease-size ()
+  "Decrease font size."
+  (interactive)
+  (->> (face-attribute 'default :height)
+       (+ (- fonts-size-step))
+       (set-face-attribute 'default (selected-frame) :height)))
+
+(defun fonts-reset-size ()
+  "Restore font size to its default value."
+  (interactive)
+  (fonts-set (fonts-current) fonts-size))
+
+(defun fonts-enable-ligatures ()
+  "Call this function to enable ligatures."
+  (interactive)
+  (let ((alist '((33 . ".\\(?:\\(?:==\\|!!\\)\\|[!=]\\)")
+                 (35 . ".\\(?:###\\|##\\|_(\\|[#(?[_{]\\)") ;;
+                 (36 . ".\\(?:>\\)")
+                 (37 . ".\\(?:\\(?:%%\\)\\|%\\)")
+                 (38 . ".\\(?:\\(?:&&\\)\\|&\\)")
+                 (42 . ".\\(?:\\(?:\\*\\*/\\)\\|\\(?:\\*[*/]\\)\\|[*/>]\\)") ;;
+                 (43 . ".\\(?:\\(?:\\+\\+\\)\\|[+>]\\)")
+                 (45 . ".\\(?:\\(?:-[>-]\\|<<\\|>>\\)\\|[<>}~-]\\)")
+                 (46 . ".\\(?:\\(?:\\.[.<]\\)\\|[.=-]\\)") ;;
+                 (47 . ".\\(?:\\(?:\\*\\*\\|//\\|==\\)\\|[*/=>]\\)")
+                 (48 . ".\\(?:x[a-zA-Z]\\)")
+                 (58 . ".\\(?:::\\|[:=]\\)")
+                 (59 . ".\\(?:;;\\|;\\)")
+                 (60 . ".\\(?:\\(?:!--\\)\\|\\(?:~~\\|->\\|\\$>\\|\\*>\\|\\+>\\|--\\|<[<=-]\\|=[<=>]\\||>\\)\\|[*$+~/<=>|-]\\)")
+                 (61 . ".\\(?:\\(?:/=\\|:=\\|<<\\|=[=>]\\|>>\\)\\|[<=>~]\\)")
+                 (62 . ".\\(?:\\(?:=>\\|>[=>-]\\)\\|[=>-]\\)")
+                 (63 . ".\\(?:\\(\\?\\?\\)\\|[:=?]\\)")
+                 (91 . ".\\(?:]\\)")
+                 (92 . ".\\(?:\\(?:\\\\\\\\\\)\\|\\\\\\)")
+                 (94 . ".\\(?:=\\)")
+                 (119 . ".\\(?:ww\\)")
+                 (123 . ".\\(?:-\\)")
+                 (124 . ".\\(?:\\(?:|[=|]\\)\\|[=>|]\\)")
+                 (126 . ".\\(?:~>\\|~~\\|[>=@~-]\\)"))))
+    (dolist (char-regexp alist)
+      (set-char-table-range composition-function-table (car char-regexp)
+                            `([,(cdr char-regexp) 0 font-shape-gstring])))))
+
+(provide 'fonts)
+;;; fonts.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/ivy-helpers.el b/users/wpcarro/emacs/.emacs.d/wpc/ivy-helpers.el
new file mode 100644
index 000000000000..3303237d52af
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/ivy-helpers.el
@@ -0,0 +1,67 @@
+;;; ivy-helpers.el --- More interfaces to ivy -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Hopefully to improve my workflows.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'tuple)
+(require 'string)
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defun ivy-helpers-kv (prompt kv f)
+  "PROMPT users with the keys in KV and return its corresponding value.
+
+Apply key and value from KV to F."
+  (ivy-read
+   prompt
+   kv
+   :require-match t
+   :action (lambda (entry)
+             (funcall f (car entry) (cdr entry)))))
+
+(defun ivy-helpers-do-run-external-command (cmd)
+  "Execute the specified CMD and notify the user when it finishes."
+  (message "Starting %s..." cmd)
+  (set-process-sentinel
+   (start-process-shell-command cmd nil cmd)
+   (lambda (process event)
+     (when (string= event "finished\n")
+       (message "%s process finished." process)))))
+
+(defun ivy-helpers-list-external-commands ()
+  "Create a list of all external commands available on $PATH."
+  (cl-loop
+   for dir in (split-string (getenv "PATH") path-separator)
+   when (and (file-exists-p dir) (file-accessible-directory-p dir))
+   for lsdir = (cl-loop for i in (directory-files dir t)
+                        for bn = (file-name-nondirectory i)
+                        when (and (not (s-contains? "-wrapped" i))
+                                  (not (member bn completions))
+                                  (not (file-directory-p i))
+                                  (file-executable-p i))
+                        collect bn)
+   append lsdir into completions
+   finally return (sort completions 'string-lessp)))
+
+(defun ivy-helpers-run-external-command ()
+  "Prompts the user with a list of all installed applications to launch."
+  (interactive)
+  (let ((external-commands-list (ivy-helpers-list-external-commands)))
+    (ivy-read "Command:" external-commands-list
+              :require-match t
+              :action #'ivy-helpers-do-run-external-command)))
+
+;;; Code:
+(provide 'ivy-helpers)
+;;; ivy-helpers.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/kbd.el b/users/wpcarro/emacs/.emacs.d/wpc/kbd.el
new file mode 100644
index 000000000000..7defc3d08f3b
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/kbd.el
@@ -0,0 +1,85 @@
+;;; kbd.el --- Elisp keybinding -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; In order to stay organized, I'm attempting to dedicate KBD prefixes to
+;; specific functions.  I'm hoping I can be more deliberate with my keybinding
+;; choices this way.
+;;
+;; Terminology:
+;; For a more thorough overview of the terminology refer to `keybindings.md'
+;; file.  Here's a brief overview:
+;; - workspace: Anything concerning EXWM workspaces.
+;; - x11: Anything concerning X11 applications.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'al)
+(require 'set)
+(require 'string)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst kbd-prefixes
+  '((workspace . "s")
+    (x11 . "C-s"))
+  "Mapping of functions to designated keybinding prefixes to stay organized.")
+
+;; Assert that no keybindings are colliding.
+(prelude-assert
+ (= (al-count kbd-prefixes)
+    (->> kbd-prefixes
+         al-values
+         set-from-list
+         set-count)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun kbd-raw (f x)
+  "Return the string keybinding for function F and appendage X.
+Values for F include:
+- workspace
+- x11"
+  (prelude-assert (al-has-key? f kbd-prefixes))
+  (string-format
+   "%s-%s"
+   (al-get f kbd-prefixes)
+   x))
+
+(defun kbd-for (f x)
+  "Return the `kbd' for function F and appendage X.
+Values for F include:
+- workspace
+- x11"
+  (kbd (kbd-raw f x)))
+
+;; TODO: Prefer copying human-readable versions to the clipboard.  Right now
+;; this isn't too useful.
+(defun kbd-copy-keycode ()
+  "Copy the pressed key to the system clipboard."
+  (interactive)
+  (message "[kbd] Awaiting keypress...")
+  (let ((key (read-key)))
+    (clipboard-copy (string-format "%s" key))
+    (message (string-format "[kbd] \"%s\" copied!" key))))
+
+(defun kbd-print-keycode ()
+  "Prints the pressed keybinding."
+  (interactive)
+  (message "[kbd] Awaiting keypress...")
+  (message (string-format "[kbd] keycode: %s" (read-key))))
+
+(provide 'kbd)
+;;; kbd.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/keybindings.el b/users/wpcarro/emacs/.emacs.d/wpc/keybindings.el
new file mode 100644
index 000000000000..a55bf2733011
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/keybindings.el
@@ -0,0 +1,495 @@
+;;; keybindings.el --- Centralizing my keybindings -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Attempting to centralize my keybindings to simplify my configuration.
+;;
+;; I have some expectations about my keybindings.  Here are some of those
+;; defined:
+;; - In insert mode:
+;;   - C-a: beginning-of-line
+;;   - C-e: end-of-line
+;;   - C-b: backwards-char
+;;   - C-f: forwards-char
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'screen-brightness)
+(require 'pulse-audio)
+(require 'scrot)
+(require 'ivy)
+(require 'ivy-clipmenu)
+(require 'ivy-helpers)
+(require 'general)
+(require 'exwm)
+(require 'vterm-mgt)
+(require 'buffer)
+(require 'fonts)
+(require 'bookmark)
+(require 'tvl)
+(require 'window-manager)
+
+;; Note: The following lines must be sorted this way.
+(setq evil-want-integration t)
+(setq evil-want-keybinding nil)
+(general-evil-setup)
+(require 'evil)
+(require 'evil-collection)
+(require 'evil-commentary)
+(require 'evil-surround)
+(require 'key-chord)
+(require 'edebug)
+(require 'avy)
+(require 'passage)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Helper Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun keybindings--window-vsplit-right ()
+  "Split the window vertically and focus the right half."
+  (interactive)
+  (evil-window-vsplit)
+  (windmove-right))
+
+(defun keybindings--window-split-down ()
+  "Split the window horizontal and focus the bottom half."
+  (interactive)
+  (evil-window-split)
+  (windmove-down))
+
+(defun keybindings--create-snippet ()
+  "Create a window split and then opens the Yasnippet editor."
+  (interactive)
+  (evil-window-vsplit)
+  (call-interactively #'yas-new-snippet))
+
+(defun keybindings--replace-under-point ()
+  "Faster than typing %s//thing/g."
+  (interactive)
+  (let ((term (s-replace "/" "\\/" (symbol-to-string (symbol-at-point)))))
+    (save-excursion
+      (evil-ex (concat "%s/\\b" term "\\b/")))))
+
+(defun keybindings--evil-ex-define-cmd-local (cmd f)
+  "Define CMD to F locally to a buffer."
+  (unless (local-variable-p 'evil-ex-commands)
+    (setq-local evil-ex-commands (copy-alist evil-ex-commands)))
+  (evil-ex-define-cmd cmd f))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; General Keybindings
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; Ensure that evil's command mode behaves with readline bindings.
+(general-define-key
+ :keymaps 'evil-ex-completion-map
+ "C-a" #'move-beginning-of-line
+ "C-e" #'move-end-of-line
+ "C-k" #'kill-line
+ "C-u" #'evil-delete-whole-line
+ "C-v" #'evil-paste-after
+ "C-d" #'delete-char
+ "C-f" #'forward-char
+ "M-b" #'backward-word
+ "M-f" #'forward-word
+ "M-d" #'kill-word
+ "M-DEL" #'backward-kill-word
+ "C-b" #'backward-char)
+
+(general-mmap
+  :keymaps 'override
+  "RET" #'evil-goto-line
+  "H"   #'evil-first-non-blank
+  "L"   #'evil-end-of-line
+  "_"   #'ranger
+  "-"   #'dired-jump
+  "sl"  #'keybindings--window-vsplit-right
+  "sh"  #'evil-window-vsplit
+  "sk"  #'evil-window-split
+  "sj"  #'keybindings--window-split-down)
+
+(general-nmap
+  :keymaps 'override
+  "gu" #'browse-url-at-point
+  "gd" #'xref-find-definitions
+  ;; Wrapping `xref-find-references' in the `let' binding to prevent xref from
+  ;; prompting.  There are other ways to handle this variable, such as setting
+  ;; it globally with `setq' or buffer-locally with `setq-local'.  For now, I
+  ;; prefer setting it with `let', which should bind it in the dynamic scope
+  ;; for the duration of the `xref-find-references' function call.
+  "gx" (lambda ()
+         (interactive)
+         (let ((xref-prompt-for-identifier nil))
+           (call-interactively #'xref-find-references))))
+
+(general-unbind 'motion "M-." "C-p" "<SPC>")
+(general-unbind 'normal "s"   "M-." "C-p" "C-n")
+(general-unbind 'insert "C-v" "C-d" "C-a" "C-e" "C-n" "C-p" "C-k")
+
+(customize-set-variable 'evil-symbol-word-search t)
+(evil-mode 1)
+(evil-collection-init)
+(evil-commentary-mode)
+(global-evil-surround-mode 1)
+
+;; Ensure the Evil search results get centered vertically.
+;; When Emacs is run from a terminal, this forces Emacs to redraw itself, which
+;; is visually disruptive.
+(when window-system
+  (progn
+    (defadvice isearch-update
+        (before advice-for-isearch-update activate)
+      (evil-scroll-line-to-center (line-number-at-pos)))
+    (defadvice evil-search-next
+        (after advice-for-evil-search-next activate)
+      (evil-scroll-line-to-center (line-number-at-pos)))
+    (defadvice evil-search-previous
+        (after advice-for-evil-search-previous activate)
+      (evil-scroll-line-to-center (line-number-at-pos)))))
+
+(general-define-key
+ :keymaps '(isearch-mode-map)
+ "C-p" #'isearch-ring-retreat
+ "C-n" #'isearch-ring-advance
+ "<up>" #'isearch-ring-retreat
+ "<down>" #'isearch-ring-advance)
+
+(general-define-key
+ :keymaps '(minibuffer-local-isearch-map)
+ "C-p" #'previous-line-or-history-element
+ "C-n" #'next-line-or-history-element
+ "<up>" #'previous-line-or-history-element
+ "<down>" #'next-line-or-history-element)
+
+(key-chord-mode 1)
+(key-chord-define evil-insert-state-map "jk" 'evil-normal-state)
+
+;; This may be contraversial, but I never use the prefix key, and I'd prefer to
+;; have to bound to the readline function that deletes the entire line.
+(general-unbind "C-u")
+
+(defmacro keybindings-exwm (c fn)
+  "Bind C to FN using `exwm-input-set-key' with `kbd' applied to C."
+  `(exwm-input-set-key (kbd ,c) ,fn))
+
+(keybindings-exwm "C-M-v" #'ivy-clipmenu-copy)
+(keybindings-exwm "<XF86MonBrightnessUp>" #'screen-brightness-increase)
+(keybindings-exwm "<XF86MonBrightnessDown>" #'screen-brightness-decrease)
+(keybindings-exwm "<XF86AudioMute>" #'pulse-audio-toggle-mute)
+(keybindings-exwm "<XF86AudioLowerVolume>" #'pulse-audio-decrease-volume)
+(keybindings-exwm "<XF86AudioRaiseVolume>" #'pulse-audio-increase-volume)
+(keybindings-exwm "<XF86AudioMicMute>" #'pulse-audio-toggle-microphone)
+(keybindings-exwm (kbd-raw 'x11 "s") #'scrot-select)
+(keybindings-exwm "<C-M-tab>" #'window-manager-switch-to-exwm-buffer)
+(keybindings-exwm (kbd-raw 'workspace "k") #'fonts-increase-size)
+(keybindings-exwm (kbd-raw 'workspace "j") #'fonts-decrease-size)
+(keybindings-exwm (kbd-raw 'workspace "0") #'fonts-reset-size)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Window sizing
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(keybindings-exwm "C-M-=" #'balance-windows)
+(keybindings-exwm "C-M-j" #'shrink-window)
+(keybindings-exwm "C-M-k" #'enlarge-window)
+(keybindings-exwm "C-M-h" #'shrink-window-horizontally)
+(keybindings-exwm "C-M-l" #'enlarge-window-horizontally)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Window Management
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(keybindings-exwm "M-h" #'windmove-left)
+(keybindings-exwm "M-j" #'windmove-down)
+(keybindings-exwm "M-k" #'windmove-up)
+(keybindings-exwm "M-l" #'windmove-right)
+(keybindings-exwm "M-\\" #'evil-window-vsplit)
+(keybindings-exwm "M--" #'evil-window-split)
+(keybindings-exwm "M-q" #'delete-window)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Miscellaneous
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(keybindings-exwm "M-:" #'eval-expression)
+(keybindings-exwm "M-SPC" #'ivy-helpers-run-external-command)
+(keybindings-exwm "M-x" #'counsel-M-x)
+(keybindings-exwm "<M-tab>" #'window-manager-next-workspace)
+(keybindings-exwm "<M-S-iso-lefttab>" #'window-manager-prev-workspace)
+(keybindings-exwm "C-S-f" #'window-manager-toggle-previous)
+(keybindings-exwm "C-M-\\" #'passage-select)
+
+(defun keybindings-copy-emoji ()
+  "Select an emoji from the completing-read menu."
+  (interactive)
+  (clipboard-copy (emojify-completing-read "Copy: ")))
+
+(keybindings-exwm "s-e" #'keybindings-copy-emoji)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Workspaces
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(keybindings-exwm (kbd-raw 'workspace "l")
+                  (lambda ()
+                    (interactive)
+                    (shell-command window-manager-screenlocker)))
+
+(general-define-key
+ :keymaps 'override
+ "M-q" #'delete-window
+ "<s-return>" #'toggle-frame-fullscreen
+ "M-h" #'windmove-left
+ "M-l" #'windmove-right
+ "M-k" #'windmove-up
+ "M-j" #'windmove-down
+ "M-q" #'delete-window)
+
+;; Support pasting in M-:.
+(general-define-key
+ :keymaps 'read-expression-map
+ "C-v"   #'clipboard-yank
+ "C-S-v" #'clipboard-yank)
+
+(general-define-key
+ :prefix "<SPC>"
+ :states '(normal)
+ "." #'ffap
+ "gn" #'notmuch
+ "i" #'counsel-semantic-or-imenu
+ "I" #'ibuffer
+ "hk" #'helpful-callable
+ "hf" #'helpful-function
+ "hm" #'helpful-macro
+ "hc" #'helpful-command
+ "hk" #'helpful-key
+ "hv" #'helpful-variable
+ "hp" #'helpful-at-point
+ "hi" #'info-apropos
+ "s" #'flyspell-mode
+ "S" #'sort-lines
+ "=" #'align
+ "p" #'flycheck-previous-error
+ "f" #'project-find-file
+ "n" #'flycheck-next-error
+ "N" #'smerge-next
+ "W" #'balance-windows
+ "gss" #'magit-status
+ "gsd" #'tvl-depot-status
+ "E" #'refine
+ "es" #'keybindings--create-snippet
+ "l" #'linum-mode
+ "B" #'magit-blame
+ "w" #'save-buffer
+ "r" #'keybindings--replace-under-point
+ "R" #'deadgrep)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Vterm
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; Show or hide a vterm buffer.  I'm intentionally not defining this in
+;; vterm-mgt.el because it consumes `buffer-show-previous', and I'd like to
+;; avoid bloating vterm-mgt.el with dependencies that others may not want.
+(general-define-key (kbd-raw 'x11 "t")
+                    (lambda ()
+                      (interactive)
+                      (if (vterm-mgt--instance? (current-buffer))
+                          (switch-to-buffer (first (buffer-source-code-buffers)))
+                        (call-interactively #'vterm-mgt-find-or-create))))
+
+(general-define-key
+ :keymaps '(vterm-mode-map)
+ ;; For some reason vterm captures this KBD instead of EXWM
+ "C-S-f" nil
+ "s-x" #'vterm-mgt-select
+ "C-S-n" #'vterm-mgt-instantiate
+ "C-S-w" #'vterm-mgt-kill
+ "<C-tab>" #'vterm-mgt-next
+ "<C-S-iso-lefttab>" #'vterm-mgt-prev
+ "<s-backspace>" #'vterm-mgt-rename-buffer
+ ;; Without this, typing "+" is effectively no-op. Try for yourself:
+ ;; (vterm-send-key "<kp-add>")
+ "<kp-add>" "+"
+ "M--" #'evil-window-split
+ "M-\\" #'evil-window-vsplit)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; notmuch
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; evil-collection adds many KBDs to notmuch modes. Some of these I find
+;; disruptive.
+(general-define-key
+ :states '(normal)
+ :keymaps '(notmuch-show-mode-map)
+ "M-j" nil
+ "M-k" nil
+ "<C-S-iso-lefttab>" #'notmuch-show-previous-thread-show
+ "<C-tab>" #'notmuch-show-next-thread-show
+ "e" #'notmuch-show-archive-message-then-next-or-next-thread)
+
+(add-hook 'notmuch-message-mode-hook
+          (lambda ()
+            (keybindings--evil-ex-define-cmd-local "x" #'notmuch-mua-send-and-exit)))
+
+;; For now, I'm mimmicking Gmail KBDs that I have memorized and enjoy
+(general-define-key
+ :states '(normal visual)
+ :keymaps '(notmuch-search-mode-map)
+ "M"  (lambda ()
+        (interactive)
+        (notmuch-search-tag '("-inbox" "+muted")))
+ "mi" (lambda ()
+        (interactive)
+        (notmuch-search-tag '("+inbox" "-action" "-review" "-waiting" "-muted")))
+ "ma" (lambda ()
+        (interactive)
+        (notmuch-search-tag '("-inbox" "+action" "-review" "-waiting")))
+ "mr" (lambda ()
+        (interactive)
+        (notmuch-search-tag '("-inbox" "-action" "+review" "-waiting")))
+ "mw" (lambda ()
+        (interactive)
+        (notmuch-search-tag '("-inbox" "-action" "-review" "+waiting")))
+ "e" #'notmuch-search-archive-thread)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; magit
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :states '(normal)
+ :keymaps '(magit-status-mode-map
+            magit-log-mode-map
+            magit-revision-mode-map)
+ "l" #'evil-forward-char
+ "L" #'magit-log)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Info-mode
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; NOTE: I find some of the following, existing KBDs useful:
+;;   M-x info-apropos
+;;   u   Info-up
+;;   M-n clone-buffer
+(general-define-key
+ :states '(normal)
+ :keymaps '(Info-mode-map)
+ "SPC" nil
+ "g SPC" #'Info-scroll-up
+ "RET" #'Info-follow-nearest-node
+ "<C-tab>" #'Info-next
+ "<C-S-iso-lefttab>" #'Info-prev
+ "g l" #'Info-history-back
+ "g t" #'Info-toc)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ibuffer
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :states '(normal)
+ :keymaps '(ibuffer-mode-map)
+ "M-j" nil
+ "K" #'ibuffer-do-delete)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; buffers
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :states '(normal)
+ "C-f" #'buffer-cycle-next
+ "C-b" #'buffer-cycle-prev)
+
+(general-define-key
+ :prefix "<SPC>"
+ :states '(normal)
+ "b" #'buffer-ivy-source-code
+ "<SPC>" #'buffer-show-previous
+ "k" #'kill-buffer)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; edebug
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :states '(normal)
+ :keymaps '(edebug-mode-map)
+ ;; this restores my ability to move-left while debugging
+ "h" nil)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; deadgrep
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :states '(normal)
+ :keymaps '(deadgrep-mode-map)
+ "<tab>" #'deadgrep-forward
+ "<backtab>" #'deadgrep-backward)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; bookmarks
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(bookmark-install-kbd
+ (make-bookmark :label "wpcarro"
+                :path (f-join tvl-depot-path "users/wpcarro")
+                :kbd "w"))
+
+(bookmark-install-kbd
+ (make-bookmark :label "depot"
+                :path tvl-depot-path
+                :kbd "d"))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; refine
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :keymaps '(refine-mode-map)
+ :states '(normal)
+ "K" #'refine-delete
+ "q" #'kill-this-buffer)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; avy
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(global-set-key (kbd "C-;") #'avy-goto-char)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; ivy
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; restore the ability to paste in ivy
+(general-define-key
+ :keymaps '(ivy-minibuffer-map)
+ "C-k" #'kill-line
+ "C-u" (lambda () (interactive) (kill-line 0))
+ "C-v" #'clipboard-yank
+ "C-S-v" #'clipboard-yank)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Rust
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(general-define-key
+ :keymaps '(rust-mode-map)
+ :states '(normal)
+ "gd" #'lsp-find-definition
+ "gr" #'lsp-find-references)
+
+(general-define-key
+ :keymaps '(rust-mode-map)
+ "TAB" #'company-indent-or-complete-common)
+
+(provide 'keybindings)
+;;; keybindings.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/keyboard.el b/users/wpcarro/emacs/.emacs.d/wpc/keyboard.el
new file mode 100644
index 000000000000..0ee00e1b84e7
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/keyboard.el
@@ -0,0 +1,138 @@
+;;; keyboard.el --- Managing keyboard preferences with Elisp -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Setting key repeat and other values.
+;;
+;; Be wary of suspiciously round numbers.  Especially those divisible by ten!
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'cl-lib)
+(require 'prelude)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Support clamping functions for repeat-{rate,delay} to ensure only valid
+;; values are sent to xset.
+(defcustom keyboard-repeat-rate 80
+  "The number of key repeat signals sent per second.")
+
+(defcustom keyboard-repeat-delay 170
+  "The number of milliseconds before autorepeat starts.")
+
+(defconst keyboard-repeat-rate-copy keyboard-repeat-rate
+  "Copy of `keyboard-repeat-rate' to support `keyboard-reset-key-repeat'.")
+
+(defconst keyboard-repeat-delay-copy keyboard-repeat-delay
+  "Copy of `keyboard-repeat-delay' to support `keyboard-reset-key-repeat'.")
+
+(defcustom keyboard-install-preferences? t
+  "When t, install keyboard preferences.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun keyboard-message (x)
+  "Message X in a structured way."
+  (message (format "[keyboard.el] %s" x)))
+
+(cl-defun keyboard-set-key-repeat (&key
+                                   (rate keyboard-repeat-rate)
+                                   (delay keyboard-repeat-delay))
+  "Use xset to set the key-repeat RATE and DELAY."
+  (prelude-start-process
+   :name "keyboard-set-key-repeat"
+   :command (format "xset r rate %s %s" delay rate)))
+
+;; NOTE: Settings like this are machine-dependent. For instance I only need to
+;; do this on my laptop and other devices where I don't have access to my split
+;; keyboard.
+;; NOTE: Running keysym Caps_Lock is not idempotent.  If this is called more
+;; than once, xmodmap will start to error about non-existent Caps_Lock symbol.
+;; For more information see here:
+;; https://unix.stackexchange.com/questions/108207/how-to-map-caps-lock-as-the-compose-key-using-xmodmap-portably-and-idempotently
+(defun keyboard-swap-caps-lock-and-escape ()
+  "Swaps the caps lock and escape keys using xmodmap."
+  (interactive)
+  ;; TODO: Ensure these work once the tokenizing in prelude-start-process works
+  ;; as expected.
+  (start-process "keyboard-swap-caps-lock-and-escape"
+                 nil "/usr/bin/xmodmap" "-e" "remove Lock = Caps_Lock")
+  (start-process "keyboard-swap-caps-lock-and-escape"
+                 nil "/usr/bin/xmodmap" "-e" "keysym Caps_Lock = Escape"))
+
+(defun keyboard-inc-repeat-rate ()
+  "Increment `keyboard-repeat-rate'."
+  (interactive)
+  (setq keyboard-repeat-rate (1+ keyboard-repeat-rate))
+  (keyboard-set-key-repeat :rate keyboard-repeat-rate)
+  (keyboard-message
+   (format "Rate: %s" keyboard-repeat-rate)))
+
+(defun keyboard-dec-repeat-rate ()
+  "Decrement `keyboard-repeat-rate'."
+  (interactive)
+  (setq keyboard-repeat-rate (1- keyboard-repeat-rate))
+  (keyboard-set-key-repeat :rate keyboard-repeat-rate)
+  (keyboard-message
+   (format "Rate: %s" keyboard-repeat-rate)))
+
+(defun keyboard-inc-repeat-delay ()
+  "Increment `keyboard-repeat-delay'."
+  (interactive)
+  (setq keyboard-repeat-delay (1+ keyboard-repeat-delay))
+  (keyboard-set-key-repeat :delay keyboard-repeat-delay)
+  (keyboard-message
+   (format "Delay: %s" keyboard-repeat-delay)))
+
+(defun keyboard-dec-repeat-delay ()
+  "Decrement `keyboard-repeat-delay'."
+  (interactive)
+  (setq keyboard-repeat-delay (1- keyboard-repeat-delay))
+  (keyboard-set-key-repeat :delay keyboard-repeat-delay)
+  (keyboard-message
+   (format "Delay: %s" keyboard-repeat-delay)))
+
+(defun keyboard-print-key-repeat ()
+  "Print the currently set values for key repeat."
+  (interactive)
+  (keyboard-message
+   (format "Rate: %s. Delay: %s"
+           keyboard-repeat-rate
+           keyboard-repeat-delay)))
+
+(defun keyboard-set-preferences ()
+  "Reset the keyboard preferences to their default values.
+NOTE: This function exists because occasionally I unplug and re-plug in a
+  keyboard and all of the preferences that I set using xset disappear."
+  (interactive)
+  (keyboard-swap-caps-lock-and-escape)
+  (keyboard-set-key-repeat :rate keyboard-repeat-rate
+                           :delay keyboard-repeat-delay)
+  ;; TODO: Implement this message function as a macro that pulls the current
+  ;; file name.
+  (keyboard-message "Keyboard preferences set!"))
+
+(defun keyboard-reset-key-repeat ()
+  "Set key repeat rate and delay to original values."
+  (interactive)
+  (keyboard-set-key-repeat :rate keyboard-repeat-rate-copy
+                           :delay keyboard-repeat-delay-copy)
+  (keyboard-message "Key repeat preferences reset."))
+
+(when keyboard-install-preferences?
+  (keyboard-set-preferences))
+
+(provide 'keyboard)
+;;; keyboard.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/modeline.el b/users/wpcarro/emacs/.emacs.d/wpc/modeline.el
new file mode 100644
index 000000000000..df1cddec9d92
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/modeline.el
@@ -0,0 +1,68 @@
+;;; modeline.el --- Customize my mode-line -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Because I use EXWM, I treat my Emacs mode-line like my system bar: I need to
+;; quickly check the system time, and I expect it to be at the bottom-right of
+;; my Emacs frame.  I used doom-modeline for awhile, which is an impressive
+;; package, but it conditionally colorizes on the modeline for the active
+;; buffer.  So if my bottom-right window is inactive, I cannot see the time.
+;;
+;; My friend, @tazjin, has a modeline setup that I think is more compatible with
+;; EXWM, so I'm going to base my setup off of his.
+
+;;; Code:
+
+(use-package telephone-line)
+
+(defun modeline-bottom-right-window? ()
+  "Determines whether the last (i.e.
+bottom-right) window of the
+active frame is showing the buffer in which this function is
+  executed."
+  (let* ((frame (selected-frame))
+         (right-windows (window-at-side-list frame 'right))
+         (bottom-windows (window-at-side-list frame 'bottom))
+         (last-window (car (seq-intersection right-windows bottom-windows))))
+    (eq (current-buffer) (window-buffer last-window))))
+
+(defun modeline-maybe-render-time ()
+  "Conditionally renders the `mode-line-misc-info' string.
+
+  The idea is to not display information like the current time,
+  load, battery levels on all buffers."
+  (when (modeline-bottom-right-window?)
+    (telephone-line-raw mode-line-misc-info t)))
+
+(defun modeline-setup ()
+  "Render my custom modeline."
+  (telephone-line-defsegment telephone-line-last-window-segment ()
+    (modeline-maybe-render-time))
+  ;; Display the current EXWM workspace index in the mode-line
+  (telephone-line-defsegment telephone-line-exwm-workspace-index ()
+    (when (modeline-bottom-right-window?)
+      (format "[%s]" exwm-workspace-current-index)))
+  ;; Define a highlight font for ~ important ~ information in the last
+  ;; window.
+  (defface special-highlight
+    '((t (:foreground "white" :background "#5f627f"))) "")
+  (add-to-list 'telephone-line-faces
+               '(highlight . (special-highlight . special-highlight)))
+  (setq telephone-line-lhs
+        '((nil . (telephone-line-position-segment))
+          (accent . (telephone-line-buffer-segment))))
+  (setq telephone-line-rhs
+        '((accent . (telephone-line-major-mode-segment))
+          (nil . (telephone-line-last-window-segment
+                  telephone-line-exwm-workspace-index))))
+  (setq telephone-line-primary-left-separator 'telephone-line-tan-left
+        telephone-line-primary-right-separator 'telephone-line-tan-right
+        telephone-line-secondary-left-separator 'telephone-line-tan-hollow-left
+        telephone-line-secondary-right-separator 'telephone-line-tan-hollow-right)
+  (telephone-line-mode 1))
+
+(provide 'modeline)
+;;; modeline.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/prelude.el b/users/wpcarro/emacs/.emacs.d/wpc/prelude.el
new file mode 100644
index 000000000000..4a332cb8ca0e
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/prelude.el
@@ -0,0 +1,144 @@
+;;; prelude.el --- My attempt at augmenting Elisp stdlib -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Some of these ideas are scattered across other modules like `fs',
+;; `string-functions', etc.  I'd like to keep everything modular.  I still don't
+;; have an answer for which items belond in `misc'; I don't want that to become
+;; a dumping grounds.  Ideally this file will `require' all other modules and
+;; define just a handful of functions.
+
+;; TODO: Consider removing all dependencies from prelude.el.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'dash)
+(require 's)
+(require 'f)
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Utilities
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun prelude-to-string (x)
+  "Convert X to a string."
+  (format "%s" x))
+
+(defun prelude-inspect (&rest args)
+  "Message ARGS where ARGS are any type."
+  (->> args
+       (-map #'prelude-to-string)
+       (apply #'s-concat)
+       message))
+
+(defmacro prelude-call-process-to-string (cmd &rest args)
+  "Return the string output of CMD called with ARGS."
+  `(with-temp-buffer
+     (call-process ,cmd nil (current-buffer) nil ,@args)
+     (buffer-string)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Assertions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Should I `throw' instead of `error' here?
+(defmacro prelude-assert (x)
+  "Errors unless X is t.
+These are strict assertions and purposely do not rely on truthiness."
+  (let ((as-string (prelude-to-string x)))
+    `(unless (equal t ,x)
+       (error (s-concat "Assertion failed: " ,as-string)))))
+
+(defmacro prelude-refute (x)
+  "Errors unless X is nil."
+  (let ((as-string (prelude-to-string x)))
+    `(unless (equal nil ,x)
+       (error (s-concat "Refutation failed: " ,as-string)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Adapter functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun prelude-identity (x)
+  "Return X unchanged."
+  x)
+
+(defun prelude-const (x)
+  "Return a variadic lambda that will return X."
+  (lambda (&rest _) x))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Miscellaneous
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Consider packaging these into a linum-color.el package.
+;; TODO: Generate the color used here from the theme.
+(defvar prelude--linum-safe? nil
+  "Flag indicating whether it is safe to work with function `linum-mode'.")
+
+(defvar prelude--linum-mru-color nil
+  "Stores the color most recently attempted to be applied.")
+
+(add-hook 'linum-mode-hook
+          (lambda ()
+            (setq prelude--linum-safe? t)
+            (when (maybe-some? prelude--linum-mru-color)
+              (set-face-foreground 'linum prelude--linum-mru-color))))
+
+(defun prelude-set-line-number-color (color)
+  "Safely set linum color to `COLOR'.
+
+If this is called before Emacs initializes, the color will be stored in
+`prelude--linum-mru-color' and applied once initialization completes.
+
+Why is this safe?
+If `(set-face-foreground 'linum)' is called before initialization completes,
+Emacs will silently fail.  Without this function, it is easy to introduce
+difficult to troubleshoot bugs in your init files."
+  (if prelude--linum-safe?
+      (set-face-foreground 'linum color)
+    (setq prelude--linum-mru-color color)))
+
+(defun prelude-prompt (prompt)
+  "Read input from user with PROMPT."
+  (read-string prompt))
+
+(cl-defun prelude-start-process (&key name command)
+  "Pass command string, COMMAND, and the function name, NAME.
+This is a wrapper around `start-process' that has an API that resembles
+`shell-command'."
+  ;; TODO: Fix the bug with tokenizing here, since it will split any whitespace
+  ;; character, even though it shouldn't in the case of quoted string in shell.
+  ;; e.g. - "xmodmap -e 'one two three'" => '("xmodmap" "-e" "'one two three'")
+  (prelude-refute (s-contains? "'" command))
+  (let* ((tokens (s-split " " command))
+         (program-name (nth 0 tokens))
+         (program-args (cdr tokens)))
+    (apply #'start-process
+           `(,(format "*%s<%s>*" program-name name)
+             ,nil
+             ,program-name
+             ,@program-args))))
+
+(defun prelude-executable-exists? (name)
+  "Return t if CLI tool NAME exists according to the variable `exec-path'."
+  (let ((file (locate-file name exec-path)))
+    (require 'maybe)
+    (if (maybe-some? file)
+        (f-exists? file)
+      nil)))
+
+(defmacro prelude-time (x)
+  "Print the time it takes to evaluate X."
+  `(benchmark 1 ',x))
+
+(provide 'prelude)
+;;; prelude.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/pulse-audio.el b/users/wpcarro/emacs/.emacs.d/wpc/pulse-audio.el
new file mode 100644
index 000000000000..eaa610659073
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/pulse-audio.el
@@ -0,0 +1,69 @@
+;;; pulse-audio.el --- Control audio with Elisp -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Because everything in my configuration is turning into Elisp these days.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'string)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst pulse-audio--step-size 5
+  "The size by which to increase or decrease the volume.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun pulse-audio--message (x)
+  "Output X to *Messages*."
+  (message (string-format "[pulse-audio.el] %s" x)))
+
+(defun pulse-audio-toggle-mute ()
+  "Mute the default sink."
+  (interactive)
+  (prelude-start-process
+   :name "pulse-audio-toggle-mute"
+   :command "pactl set-sink-mute @DEFAULT_SINK@ toggle")
+  (pulse-audio--message "Mute toggled."))
+
+(defun pulse-audio-toggle-microphone ()
+  "Mute the default sink."
+  (interactive)
+  (prelude-start-process
+   :name "pulse-audio-toggle-microphone"
+   :command "pactl set-source-mute @DEFAULT_SOURCE@ toggle")
+  (pulse-audio--message "Microphone toggled."))
+
+(defun pulse-audio-decrease-volume ()
+  "Low the volume output of the default sink."
+  (interactive)
+  (prelude-start-process
+   :name "pulse-audio-decrease-volume"
+   :command (string-format "pactl set-sink-volume @DEFAULT_SINK@ -%s%%"
+                           pulse-audio--step-size))
+  (pulse-audio--message "Volume decreased."))
+
+(defun pulse-audio-increase-volume ()
+  "Raise the volume output of the default sink."
+  (interactive)
+  (prelude-start-process
+   :name "pulse-audio-increase-volume"
+   :command (string-format "pactl set-sink-volume @DEFAULT_SINK@ +%s%%"
+                           pulse-audio--step-size))
+  (pulse-audio--message "Volume increased."))
+
+(provide 'pulse-audio)
+;;; pulse-audio.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/region.el b/users/wpcarro/emacs/.emacs.d/wpc/region.el
new file mode 100644
index 000000000000..0b692981f899
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/region.el
@@ -0,0 +1,23 @@
+;;; region.el --- Functions for working with regions -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Sometimes Emacs's function names and argument ordering is great; other times,
+;; it isn't.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun region-to-string ()
+  "Return the string in the active region."
+  (buffer-substring-no-properties (region-beginning)
+                                  (region-end)))
+
+(provide 'region)
+;;; region.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/screen-brightness.el b/users/wpcarro/emacs/.emacs.d/wpc/screen-brightness.el
new file mode 100644
index 000000000000..851be9f99f80
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/screen-brightness.el
@@ -0,0 +1,57 @@
+;;; screen-brightness.el --- Control laptop screen brightness -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Control your laptop's screen brightness.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defgroup screen-brightness nil "Configuration for screen-brightness.")
+
+(defcustom screen-brightness-increase-cmd
+  "light -A 3"
+  "The shell command to run to increase screen brightness."
+  :group 'screen-brightness
+  :type 'string)
+
+(defcustom screen-brightness-decrease-cmd
+  "light -U 3"
+  "The shell command to run to decrease screen brightness."
+  :group 'screen-brightness
+  :type 'string)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun screen-brightness-increase ()
+  "Increase the screen brightness."
+  (interactive)
+  (prelude-start-process
+   :name "screen-brightness-increase"
+   :command screen-brightness-increase-cmd)
+  (message "[screen-brightness.el] Increased screen brightness."))
+
+(defun screen-brightness-decrease ()
+  "Decrease the screen brightness."
+  (interactive)
+  (prelude-start-process
+   :name "screen-brightness-decrease"
+   :command screen-brightness-decrease-cmd)
+  (message "[screen-brightness.el] Decreased screen brightness."))
+
+(provide 'screen-brightness)
+;;; screen-brightness.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/scrot.el b/users/wpcarro/emacs/.emacs.d/wpc/scrot.el
new file mode 100644
index 000000000000..08994fea5fda
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/scrot.el
@@ -0,0 +1,54 @@
+;;; scrot.el --- Screenshot functions -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; scrot is a Linux utility for taking screenshots.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'f)
+(require 'string)
+(require 'ts)
+(require 'clipboard)
+(require 'kbd)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst scrot-screenshot-directory "~/Downloads"
+  "The default directory for screenshot outputs.")
+
+(defconst scrot-output-format "screenshot_%H:%M:%S_%Y-%m-%d.png"
+  "The format string for the output screenshot file.
+See scrot's man page for more information.")
+
+(defun scrot--copy-image (path)
+  "Use xclip to copy the image at PATH to the clipboard.
+This currently only works for PNG files because that's what I'm outputting"
+  (call-process "xclip" nil nil nil
+                "-selection" "clipboard" "-t" "image/png" path)
+  (message (string-format "[scrot.el] Image copied to clipboard!")))
+
+(defun scrot-select ()
+  "Click-and-drag to screenshot a region.
+The output path is copied to the user's clipboard."
+  (interactive)
+  (let ((screenshot-path (f-join scrot-screenshot-directory
+                                 (ts-format scrot-output-format (ts-now)))))
+    (make-process
+     :name "scrot-select"
+     :command `("scrot" "--select" ,screenshot-path)
+     :sentinel (lambda (proc _err)
+                 (when (= 0 (process-exit-status proc))
+                   (scrot--copy-image screenshot-path))))))
+
+(provide 'scrot)
+;;; scrot.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/ssh.el b/users/wpcarro/emacs/.emacs.d/wpc/ssh.el
new file mode 100644
index 000000000000..1179e9036334
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/ssh.el
@@ -0,0 +1,67 @@
+;;; ssh.el --- When working remotely -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Configuration to make remote work easier.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'tramp)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Is "ssh" preferable to "scp"?
+(setq tramp-default-method "ssh")
+
+;; Taken from: https://superuser.com/questions/179313/tramp-waiting-for-prompts-from-remote-shell
+(setq tramp-shell-prompt-pattern "^[^$>\n]*[#$%>] *\\(\[[0-9;]*[a-zA-Z] *\\)*")
+
+;; Sets the value of the TERM variable to "dumb" when logging into the remote
+;; host. This allows me to check for the value of "dumb" in my shell's init file
+;; and control the startup accordingly. You can see in the (shamefully large)
+;; commit, 0b4ef0e, that I added a check like this to my ~/.zshrc. I've since
+;; switched from z-shell to fish. I don't currently have this check in
+;; config.fish, but I may need to add it one day soon.
+(setq tramp-terminal-type "dumb")
+
+;; Maximizes the tramp debugging noisiness while I'm still learning about tramp.
+(setq tramp-verbose 10)
+
+;; As confusing as this may seem, this forces Tramp to use *my* .ssh/config
+;; options, which enable ControlMaster. In other words, disabling this actually
+;; enables ControlMaster.
+(setq tramp-use-ssh-controlmaster-options nil)
+
+(defcustom ssh-hosts '("wpcarro@wpcarro.dev"
+                       "foundation"
+                       "edge")
+  "List of hosts to which I commonly connect.")
+
+(defun ssh-sudo-buffer ()
+  "Open the current buffer with sudo rights."
+  (interactive)
+  (with-current-buffer (current-buffer)
+    (if (s-starts-with? "/ssh:" buffer-file-name)
+        (pcase (s-split ":" buffer-file-name)
+          (`(,one ,two ,three) (find-file (format "/ssh:%s|sudo:%s:%s" two two three))))
+        (find-file
+         (s-join ":" (-insert-at 2 "|sudo" (s-split ":" buffer-file-name))))
+      (find-file (format "/sudo::%s" buffer-file-name)))))
+
+(defun ssh-cd-home ()
+  "Prompt for an SSH host and open a dired buffer for wpcarro on that machine."
+  (interactive)
+  (let ((machine (completing-read "Machine: " ssh-hosts)))
+    (find-file (format "/ssh:%s:~" machine))))
+
+(provide 'ssh)
+;;; ssh.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/window-manager.el b/users/wpcarro/emacs/.emacs.d/wpc/window-manager.el
new file mode 100644
index 000000000000..94fb99d4271b
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/window-manager.el
@@ -0,0 +1,228 @@
+;;; window-manager.el --- Functions augmenting my usage of EXWM -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; I switched to EXWM from i3, and I haven't looked back.  One day I may write a
+;; poem declaring my love for Emacs and EXWM.  For now, I haven't the time.
+
+;; Wist List:
+;; - TODO: Consider supporting MRU cache of worksapces.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'alert)
+(require 'cycle)
+(require 'dash)
+(require 'kbd)
+(require 's)
+(require 'exwm)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Variables
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defgroup window-manager nil
+  "Customization options for `window-manager'.")
+
+(cl-defstruct window-manager-named-workspace
+  label kbd display)
+
+(defcustom window-manager-named-workspaces nil
+  "List of `window-manager-named-workspace' structs."
+  :group 'window-manager
+  :type (list 'window-manager-named-workspace))
+
+(defcustom window-manager-screenlocker "xsecurelock"
+  "Reference to a screen-locking executable."
+  :group 'window-manager
+  :type 'string)
+
+(defvar window-manager--workspaces nil
+  "Cycle of the my EXWM workspaces.")
+
+(defconst window-manager--modes
+  (cycle-from-list (list #'window-manager--char-mode
+                         #'window-manager--line-mode))
+  "Functions to switch exwm modes.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun window-manager--alert (x)
+  "Message X with a structured format."
+  (alert (s-concat "[exwm] " x)))
+
+(cl-defun window-manager-init (&key init-hook)
+  "Call `exwm-enable' alongside other bootstrapping functions."
+  (require 'exwm-config)
+  (require 'exwm-randr)
+  (setq exwm-randr-workspace-monitor-plist
+        (->> window-manager-named-workspaces
+             (-map-indexed (lambda (i x)
+                             (list i (window-manager-named-workspace-display x))))
+             -flatten))
+  (setq exwm-workspace-number (length window-manager-named-workspaces))
+  (setq exwm-input-simulation-keys
+        '(([?\C-b] . [left])
+          ([?\M-b] . [C-left])
+          ([?\C-f] . [right])
+          ([?\M-f] . [C-right])
+          ([?\C-p] . [up])
+          ([?\C-n] . [down])
+          ([?\C-a] . [home])
+          ([?\C-e] . [end])
+          ([?\C-d] . [delete])
+          ([?\C-c] . [C-c])))
+  ;; Install workspace KBDs
+  (progn
+    (->> window-manager-named-workspaces
+         (list-map #'window-manager--register-kbd))
+    (window-manager--alert "Registered workspace KBDs!"))
+  ;; Ensure exwm apps open in char-mode.
+  (add-hook 'exwm-manage-finish-hook #'window-manager--char-mode)
+  (add-hook 'exwm-init-hook init-hook)
+  (setq window-manager--workspaces
+        (cycle-from-list window-manager-named-workspaces))
+  (exwm-randr-enable)
+  (exwm-enable))
+
+(defun window-manager-next-workspace ()
+  "Cycle forwards to the next workspace."
+  (interactive)
+  (window-manager--change-workspace (cycle-next! window-manager--workspaces)))
+
+(defun window-manager-prev-workspace ()
+  "Cycle backwards to the previous workspace."
+  (interactive)
+  (window-manager--change-workspace (cycle-prev! window-manager--workspaces)))
+
+;; Here is the code required to toggle EXWM's modes.
+(defun window-manager--line-mode ()
+  "Switch exwm to line-mode."
+  (call-interactively #'exwm-input-grab-keyboard)
+  (window-manager--alert "Switched to line-mode"))
+
+(defun window-manager--char-mode ()
+  "Switch exwm to char-mode."
+  (call-interactively #'exwm-input-release-keyboard)
+  (window-manager--alert "Switched to char-mode"))
+
+(defun window-manager-toggle-mode ()
+  "Switch between line- and char- mode."
+  (interactive)
+  (with-current-buffer (window-buffer)
+    (when (eq major-mode 'exwm-mode)
+      (funcall (cycle-next! window-manager--modes)))))
+
+(defun window-manager--label->index (label workspaces)
+  "Return the index of the workspace in WORKSPACES named LABEL."
+  (let ((index (-elem-index label (-map #'window-manager-named-workspace-label
+                                        workspaces))))
+    (if index index (error (format "No workspace found for label: %s" label)))))
+
+(defun window-manager--register-kbd (workspace)
+  "Registers a keybinding for WORKSPACE struct.
+Currently using super- as the prefix for switching workspaces."
+  (let ((handler (lambda ()
+                   (interactive)
+                   (window-manager--switch
+                    (window-manager-named-workspace-label workspace))))
+        (key (window-manager-named-workspace-kbd workspace)))
+    (exwm-input-set-key
+     (kbd-for 'workspace key)
+     handler)))
+
+(defun window-manager--change-workspace (workspace)
+  "Switch EXWM workspaces to the WORKSPACE struct."
+  (exwm-workspace-switch
+   (window-manager--label->index
+    (window-manager-named-workspace-label workspace)
+    window-manager-named-workspaces))
+  (window-manager--alert
+   (format "Switched to: %s"
+           (window-manager-named-workspace-label workspace))))
+
+(defun window-manager--switch (label)
+  "Switch to a named workspaces using LABEL."
+  (cycle-focus! (lambda (x)
+                  (equal label
+                         (window-manager-named-workspace-label x)))
+                window-manager--workspaces)
+  (window-manager--change-workspace (cycle-current window-manager--workspaces)))
+
+(defun window-manager-toggle-previous ()
+  "Focus the previously active EXWM workspace."
+  (interactive)
+  (window-manager--change-workspace
+   (cycle-focus-previous! window-manager--workspaces)))
+
+(defun window-manager--exwm-buffer? (x)
+  "Return t if buffer X is an EXWM buffer."
+  (equal 'exwm-mode (buffer-local-value 'major-mode x)))
+
+(defun window-manager--application-name (buffer)
+  "Return the name of the application running in the EXWM BUFFER.
+This function asssumes that BUFFER passes the `window-manager--exwm-buffer?'
+predicate."
+  (with-current-buffer buffer exwm-class-name))
+
+;; TODO: Support disambiguating between two or more instances of the same
+;; application. For instance if two `exwm-class-name' values are
+;; "Google-chrome", find a encode this information in the `buffer-alist'.
+(defun window-manager-switch-to-exwm-buffer ()
+  "Use `completing-read' to focus an EXWM buffer."
+  (interactive)
+  (let* ((buffer-alist (->> (buffer-list)
+                            (-filter #'window-manager--exwm-buffer?)
+                            (-map
+                             (lambda (buffer)
+                               (cons (window-manager--application-name buffer)
+                                     buffer)))))
+         (label (completing-read "Switch to EXWM buffer: " buffer-alist)))
+    (exwm-workspace-switch-to-buffer
+     (al-get label buffer-alist))))
+
+(defun window-manager-current-workspace ()
+  "Output the label of the currently active workspace."
+  (->> window-manager--workspaces
+       cycle-current
+       window-manager-named-workspace-label))
+
+(defun window-manager-workspace-move ()
+  "Prompt the user to move the current workspace to another."
+  (interactive)
+  (exwm-workspace-move
+   exwm-workspace--current
+   (window-manager--label->index
+    (completing-read "Move current workspace to: "
+                     (->> window-manager-named-workspaces
+                          (-map #'window-manager-named-workspace-label))
+                     nil
+                     t)
+    window-manager-named-workspaces)))
+
+(defun window-manager-move-window ()
+  "Prompt the user to move the current window to another workspace."
+  (interactive)
+  (let ((window (get-buffer-window))
+        (dest (completing-read "Move current window to: "
+                               (->> window-manager-named-workspaces
+                                    (-map #'window-manager-named-workspace-label))
+                               nil
+                               t)))
+    (exwm-workspace-move-window
+     (exwm-workspace--workspace-from-frame-or-index
+      (window-manager--label->index dest window-manager-named-workspaces))
+     (exwm--buffer->id window))
+    (window-manager--switch dest)))
+
+(provide 'window-manager)
+;;; window-manager.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-clojure.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-clojure.el
new file mode 100644
index 000000000000..5582641b3f35
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-clojure.el
@@ -0,0 +1,71 @@
+;;; wpc-clojure.el --- My Clojure preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Hosting my Clojure tooling preferences
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package clojure-mode
+  :config
+  ;; from Ryan Schmukler:
+  (setq cljr-magic-require-namespaces
+        '(("io" . "clojure.java.io")
+          ("sh" . "clojure.java.shell")
+          ("jdbc" . "clojure.java.jdbc")
+          ("set" . "clojure.set")
+          ("time" . "java-time")
+          ("str" . "cuerdas.core")
+          ("path" . "pathetic.core")
+          ("walk" . "clojure.walk")
+          ("zip" . "clojure.zip")
+          ("async" . "clojure.core.async")
+          ("component" . "com.stuartsierra.component")
+          ("http" . "clj-http.client")
+          ("url" . "cemerick.url")
+          ("sql" . "honeysql.core")
+          ("csv" . "clojure.data.csv")
+          ("json" . "cheshire.core")
+          ("s" . "clojure.spec.alpha")
+          ("fs" . "me.raynes.fs")
+          ("ig" . "integrant.core")
+          ("cp" . "com.climate.claypoole")
+          ("re-frame" . "re-frame.core")
+          ("rf" . "re-frame.core")
+          ("re" . "reagent.core")
+          ("reagent" . "reagent.core")
+          ("u.core" . "utopia.core")
+          ("gen" . "clojure.spec.gen.alpha"))))
+
+(use-package cider
+  :config
+  (general-define-key
+    :keymaps 'cider-repl-mode-map
+    "C-l"    #'cider-repl-clear-buffer
+    "C-u"    #'kill-whole-line
+    "<up>"   #'cider-repl-previous-input
+    "<down>" #'cider-repl-next-input)
+  (general-define-key
+   :keymaps 'clojure-mode-map
+   :states '(normal)
+   :prefix "<SPC>"
+   "x" #'cider-eval-defun-at-point
+   "X" #'cider-eval-buffer
+   "d" #'cider-symbol-at-point)
+  (setq cider-prompt-for-symbol nil))
+
+(provide 'wpc-clojure)
+;;; wpc-clojure.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-company.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-company.el
new file mode 100644
index 000000000000..89fde4b6a177
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-company.el
@@ -0,0 +1,41 @@
+;;; wpc-company.el --- Autocompletion package, company, preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Hosts my company mode preferences
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; autocompletion client
+(use-package company
+  :config
+  (general-define-key
+    :keymaps 'company-active-map
+    "C-j" #'company-select-next
+    "C-n" #'company-select-next
+    "C-k" #'company-select-previous
+    "C-p" #'company-select-previous
+    "C-d" #'company-show-doc-buffer)
+  (setq company-tooltip-align-annotations t)
+  (setq company-idle-delay 0)
+  (setq company-show-numbers t)
+  (setq company-minimum-prefix-length 2)
+  (setq company-dabbrev-downcase nil
+        company-dabbrev-ignore-case t)
+  (global-company-mode))
+
+(provide 'wpc-company)
+;;; wpc-company.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-dired.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-dired.el
new file mode 100644
index 000000000000..7c22a4657fc0
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-dired.el
@@ -0,0 +1,51 @@
+;;; wpc-dired.el --- My dired preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; File management in Emacs, if learned and configured properly, should be
+;; capable to reduce my dependency on the terminal.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'macros)
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(progn
+  (require 'dired)
+  (setq dired-recursive-copies 'always
+        dired-recursive-deletes 'top)
+  (setq dired-listing-switches "-la --group-directories-first")
+  (general-define-key
+   :keymaps 'dired-mode-map
+   :states '(normal)
+   ;; Overriding some KBDs defined in the evil-collection module.
+   "o" #'dired-find-file-other-window
+   "<SPC>" nil ;; This unblocks some of my leader-prefixed KBDs.
+   "s" nil ;; This unblocks my window-splitting KBDs.
+   "c" #'find-file
+   "f" #'project-find-file
+   "-" (lambda () (interactive) (find-alternate-file "..")))
+  (general-add-hook 'dired-mode-hook
+                    (list (macros-enable dired-hide-details-mode)
+                          #'auto-revert-mode)))
+
+(progn
+  (require 'locate)
+  (general-define-key
+   :keymaps 'locate-mode-map
+   :states 'normal
+   "o" #'dired-find-file-other-window))
+
+(provide 'wpc-dired)
+;;; wpc-dired.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-dotnet.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-dotnet.el
new file mode 100644
index 000000000000..03fc430e4846
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-dotnet.el
@@ -0,0 +1,16 @@
+;;; wpc-dotnet.el --- C# and company -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+
+;;; Commentary:
+;; Windows things v0v.
+
+;;; Code:
+
+(require 'macros)
+
+(use-package csharp-mode)
+(macros-support-file-extension "csproj" xml-mode)
+
+(provide 'wpc-dotnet)
+;;; wpc-dotnet.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-elixir.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-elixir.el
new file mode 100644
index 000000000000..69259274c86d
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-elixir.el
@@ -0,0 +1,27 @@
+;;; wpc-elixir.el --- Elixir / Erland configuration -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; My preferences for working with Elixir / Erlang projects
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'macros)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package elixir-mode
+  :config
+  (macros-add-hook-before-save 'elixir-mode-hook #'elixir-format))
+
+(provide 'wpc-elixir)
+;;; wpc-elixir.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-flycheck.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-flycheck.el
new file mode 100644
index 000000000000..c32c5daeff13
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-flycheck.el
@@ -0,0 +1,17 @@
+;;; wpc-flycheck.el --- My flycheck configuration -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Hosts my Flycheck preferences
+
+;;; Code:
+
+(use-package flycheck
+  :config
+  (global-flycheck-mode))
+
+(provide 'wpc-flycheck)
+;;; wpc-flycheck.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-golang.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-golang.el
new file mode 100644
index 000000000000..47198c8e02a1
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-golang.el
@@ -0,0 +1,42 @@
+;;; wpc-golang.el --- Tooling preferences for Go -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Tooling support for golang development.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'macros)
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Support jumping to go source code for fmt.Println, etc.
+
+(use-package go-mode
+  :config
+  (setq gofmt-command "goimports")
+  ;; TODO: Consider configuring `xref-find-definitions' to use `godef-jump'
+  ;; instead of shadowing the KBD here.
+  (general-define-key
+   :states '(normal)
+   :keymaps '(go-mode-map)
+   "M-." #'godef-jump)
+  ;; Support calling M-x `compile'.
+  (add-hook 'go-mode-hook (lambda ()
+                            (setq-local tab-width 2)
+                            (setq-local compile-command "go build -v")))
+  (macros-add-hook-before-save 'go-mode-hook #'gofmt-before-save))
+
+(provide 'wpc-golang)
+;;; wpc-golang.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-haskell.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-haskell.el
new file mode 100644
index 000000000000..536790e36d61
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-haskell.el
@@ -0,0 +1,53 @@
+;;; wpc-haskell.el --- My Haskell preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Hosts my Haskell development preferences
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'macros)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; font-locking, glyph support, etc
+(use-package haskell-mode
+  :config
+  (macros-add-hook-before-save 'haskell-mode #'haskell-align-imports))
+
+;; Test toggling
+(defun wpc-haskell-module->test ()
+  "Jump from a module to a test."
+  (let ((filename (->> buffer-file-name
+                       (s-replace "/src/" "/test/")
+                       (s-replace ".hs" "Test.hs")
+                       find-file)))
+    (make-directory (f-dirname filename) t)
+    (find-file filename)))
+
+(defun wpc-haskell-test->module ()
+  "Jump from a test to a module."
+  (let ((filename (->> buffer-file-name
+                       (s-replace "/test/" "/src/")
+                       (s-replace "Test.hs" ".hs"))))
+    (make-directory (f-dirname filename) t)
+    (find-file filename)))
+
+(defun wpc-haskell-test<->module ()
+  "Toggle between test and module in Haskell."
+  (interactive)
+  (if (s-contains? "/src/" buffer-file-name)
+      (wpc-haskell-module->test)
+    (wpc-haskell-test->module)))
+
+(provide 'wpc-haskell)
+;;; wpc-haskell.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-javascript.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-javascript.el
new file mode 100644
index 000000000000..9e137ad8803e
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-javascript.el
@@ -0,0 +1,93 @@
+;;; wpc-javascript.el --- My Javascript preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; This module hosts my Javascript tooling preferences.  This also includes
+;; tooling for TypeScript and other frontend tooling.  Perhaps this module will
+;; change names to more accurately reflect that.
+;;
+;; Depends
+;; - yarn global add prettier
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; Constants
+(defconst wpc-javascript--js-hooks
+  '(js-mode-hook
+    web-mode-hook
+    typescript-mode-hook
+    js2-mode-hook
+    rjsx-mode-hook)
+  "All of the commonly used hooks for Javascript buffers.")
+
+(defconst wpc-javascript--frontend-hooks
+  (-insert-at 0 'css-mode-hook wpc-javascript--js-hooks)
+  "All of the commonly user hooks for frontend development.")
+
+;; frontend indentation settings
+(setq typescript-indent-level 2
+      js-indent-level 2
+      css-indent-offset 2)
+
+(use-package web-mode
+  :mode "\\.html\\'"
+  :config
+  (setq web-mode-css-indent-offset 2)
+  (setq web-mode-code-indent-offset 2)
+  (setq web-mode-markup-indent-offset 2))
+
+;; JSX highlighting
+(use-package rjsx-mode
+  :config
+  (general-unbind rjsx-mode-map "<" ">" "C-d")
+  (general-nmap
+    :keymaps 'rjsx-mode-map
+    "K" #'flow-minor-type-at-pos)
+  (setq js2-mode-show-parse-errors nil
+        js2-mode-show-strict-warnings nil))
+
+(progn
+  (defun wpc-javascript-tide-setup ()
+    (interactive)
+    (tide-setup)
+    (flycheck-mode 1)
+    (setq flycheck-check-syntax-automatically '(save mode-enabled))
+    (eldoc-mode 1)
+    (tide-hl-identifier-mode 1)
+    (company-mode 1))
+  (use-package tide
+    :config
+    (add-hook 'typescript-mode-hook #'wpc-javascript-tide-setup))
+  (require 'web-mode)
+  (add-to-list 'auto-mode-alist '("\\.tsx\\'" . web-mode))
+  (add-hook 'web-mode-hook
+            (lambda ()
+              (when (string-equal "tsx" (f-ext buffer-file-name))
+                (wpc-javascript-tide-setup))))
+  (flycheck-add-mode 'typescript-tslint 'web-mode))
+
+;; JS autoformatting
+(use-package prettier-js
+  :config
+  (general-add-hook wpc-javascript--frontend-hooks #'prettier-js-mode))
+
+;; Support Elm
+(use-package elm-mode
+  :config
+  (add-hook 'elm-mode-hook #'elm-format-on-save-mode))
+
+(provide 'wpc-javascript)
+;;; wpc-javascript.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-language-support.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-language-support.el
new file mode 100644
index 000000000000..8363e3c08ea0
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-language-support.el
@@ -0,0 +1,36 @@
+;;; wpc-language-support.el --- Support for miscellaneous programming languages -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; I defined this module to declutter my init.el.
+;;
+;; When a particular programming-language's configuration gets too complicated,
+;; I break it out into a dedicated module. Everything else gets dumped in
+;; "Miscellaneous Configuration".
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dedicated Modules
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'wpc-lisp)
+(require 'wpc-haskell)
+(require 'wpc-elixir)
+(require 'wpc-nix)
+(require 'wpc-rust)
+(require 'wpc-clojure)
+(require 'wpc-prolog)
+(require 'wpc-dotnet)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Miscellaneous Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package terraform-mode)
+
+(provide 'wpc-language-support)
+;;; wpc-language-support.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-lisp.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-lisp.el
new file mode 100644
index 000000000000..599d42620419
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-lisp.el
@@ -0,0 +1,123 @@
+;;; wpc-lisp.el --- Generic LISP preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; parent (up)
+;; child (down)
+;; prev-sibling (left)
+;; next-sibling (right)
+
+;;; Code:
+
+;; TODO: Consider having a separate module for each LISP dialect.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst wpc-lisp--hooks
+  '(lisp-mode-hook
+    emacs-lisp-mode-hook
+    clojure-mode-hook
+    clojurescript-mode-hook
+    racket-mode-hook)
+  "List of LISP modes.")
+
+(use-package sly
+  :config
+  (setq inferior-lisp-program "sbcl")
+  (general-define-key
+   :keymaps 'sly-mode-map
+   :states '(normal)
+   :prefix "<SPC>"
+   "x" #'sly-eval-defun
+   "X" #'sly-eval-buffer
+   "d" #'sly-describe-symbol))
+
+(use-package rainbow-delimiters
+  :config
+  (general-add-hook wpc-lisp--hooks #'rainbow-delimiters-mode))
+
+(use-package racket-mode
+  :config
+  (general-define-key
+   :keymaps 'racket-mode-map
+   :states 'normal
+   :prefix "<SPC>"
+   "x" #'racket-send-definition
+   "X" #'racket-run
+   "d" #'racket-describe)
+  (setq racket-program "~/.nix-profile/bin/racket"))
+
+(use-package lispyville
+  :init
+  (defconst wpc-lisp--lispyville-key-themes
+    '(c-w
+      operators
+      text-objects
+      prettify
+      commentary
+      slurp/barf-cp
+      wrap
+      additional
+      additional-insert
+      additional-wrap
+      escape)
+    "All available key-themes in Lispyville.")
+  :config
+  (general-add-hook wpc-lisp--hooks #'lispyville-mode)
+  (lispyville-set-key-theme wpc-lisp--lispyville-key-themes)
+  (progn
+    (general-define-key
+     :keymaps 'lispyville-mode-map
+     :states 'motion
+     ;; first unbind
+     "M-h" nil
+     "M-l" nil)
+    (general-define-key
+     :keymaps 'lispyville-mode-map
+     :states 'normal
+     ;; first unbind
+     "M-j" nil
+     "M-k" nil
+     ;; second rebind
+     "C-s-h" #'lispyville-drag-backward
+     "C-s-l" #'lispyville-drag-forward
+     "C-s-e" #'lispyville-end-of-defun
+     "C-s-a" #'lispyville-beginning-of-defun)))
+
+;; Elisp
+(use-package elisp-slime-nav
+  :config
+  (general-add-hook 'emacs-lisp-mode #'ielm-mode))
+
+(defun wpc-lisp-copy-elisp-eval-output ()
+  "Copy the output of the elisp evaluation"
+  (interactive)
+  (call-interactively 'eval-last-sexp)
+  (clipboard-copy (current-message)
+                  :message (format "%s - copied!" (current-message))))
+
+(general-define-key
+ :keymaps 'emacs-lisp-mode-map
+ :prefix "<SPC>"
+ :states 'normal
+ "c" #'wpc-lisp-copy-elisp-eval-output
+ "x" #'eval-defun
+ "X" #'eval-buffer
+ "d" (lambda ()
+       (interactive)
+       (with-current-buffer (current-buffer)
+         (helpful-function (symbol-at-point)))))
+
+(provide 'wpc-lisp)
+;;; wpc-lisp.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-misc.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-misc.el
new file mode 100644
index 000000000000..36fbf8b12ce6
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-misc.el
@@ -0,0 +1,330 @@
+;;; wpc-misc.el --- Hosting miscellaneous configuration -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; This is the home of any configuration that couldn't find a better home.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'project)
+(require 'f)
+(require 'dash)
+(require 'tvl)
+(require 'region)
+(require 'general)
+(require 'constants)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(setq display-time-string-forms
+      '((format-time-string "%H:%M %a %b %d")))
+(display-time-mode 1)
+
+;; Remove the boilerplate in the *scratch* buffer
+(setq initial-scratch-message "")
+
+;; disable custom variable entries from being written to ~/.emacs.d/init.el
+(setq custom-file (f-join user-emacs-directory "custom.el"))
+(load custom-file 'noerror)
+
+;; integrate Emacs with X11 clipboard
+(customize-set-variable 'select-enable-primary t)
+(customize-set-variable 'select-enable-clipboard t)
+(customize-set-variable 'evil-visual-update-x-selection-p nil)
+(general-def 'insert
+  "s-v" #'clipboard-yank
+  "C-S-v" #'clipboard-yank)
+
+;; transparently edit compressed files
+(auto-compression-mode t)
+
+;; autowrap when over the fill-column
+(setq-default auto-fill-function #'do-auto-fill)
+
+;; link to Emacs source code
+;; TODO: Update this link.
+(setq find-function-C-source-directory
+      "~/Dropbox/programming/emacs/src")
+
+;; change emacs prompts from "yes or no" -> "y or n"
+(fset 'yes-or-no-p 'y-or-n-p)
+
+;; open photos in Emacs
+(auto-image-file-mode 1)
+
+;; disable line-wrapping
+(setq-default truncate-lines 1)
+
+;; shell file indentation
+(setq sh-basic-offset 2)
+(setq sh-indentation 2)
+
+(use-package vterm
+  :config
+  (general-define-key
+   :keymaps '(vterm-mode-map)
+   :states '(insert)
+   "C-S-v" #'vterm-yank)
+  (general-define-key
+   :keymaps '(vterm-mode-map)
+   :states '(normal)
+   "K" #'evil-scroll-line-up
+   "J" #'evil-scroll-line-down
+   "C-b" #'evil-scroll-page-up
+   "C-f" #'evil-scroll-page-down))
+
+;; Use en Emacs buffer as a REST client.
+;; For more information: http://emacsrocks.com/e15.html
+(use-package restclient)
+
+;; Run `package-lint' before publishing to MELPA.
+(use-package package-lint)
+
+;; Parser combinators in Elisp.
+(use-package parsec)
+
+;; disable company mode when editing markdown
+;; TODO: move this out of wpc-misc.el and into a later file to call
+;; `(disable company-mode)'
+(use-package markdown-mode
+  :config
+  ;; TODO: Add assertion that pandoc is installed and it is accessible from
+  ;; Emacs.
+  (setq markdown-command "pandoc")
+  (setq markdown-split-window-direction 'right)
+  ;; (add-hook 'markdown-mode-hook #'markdown-live-preview-mode)
+  ;; Use mode-specific syntax highlighting for code blocks.
+  (setq markdown-fontify-code-blocks-natively t)
+  ;; Prevent Emacs from adding a space after the leading 3x-backticks.
+  (setq markdown-spaces-after-code-fence 0))
+
+(use-package alert)
+
+(use-package refine)
+
+;; Required by some google-emacs package commands.
+(use-package deferred)
+
+;; git integration
+(use-package magit
+  :config
+  (add-hook 'git-commit-setup-hook
+            (lambda ()
+              (company-mode -1)
+              (flyspell-mode 1)))
+  (setq magit-display-buffer-function
+        #'magit-display-buffer-same-window-except-diff-v1))
+
+(use-package magit-popup)
+
+;; http
+(use-package request)
+
+;; TVL depot stuff
+(use-package tvl)
+
+;; perl-compatible regular expressions
+(use-package pcre2el)
+
+;; alternative to help
+(use-package helpful)
+
+;; If called from an existing helpful-mode buffer, reuse that buffer; otherwise,
+;; call `pop-to-buffer'.
+(setq helpful-switch-buffer-function
+      (lambda (buffer-or-name)
+        (if (eq major-mode 'helpful-mode)
+            (switch-to-buffer buffer-or-name)
+          (pop-to-buffer buffer-or-name))))
+
+;; Emacs integration with direnv
+(use-package direnv
+  :config
+  (direnv-mode))
+
+;; Superior Elisp library for working with dates and times.
+;; TODO: Put this where my other installations for dash.el, s.el, a.el, and
+;; other utility Elisp libraries are located.
+(use-package ts)
+
+;; persist history etc b/w Emacs sessions
+(setq desktop-save 'if-exists)
+(desktop-save-mode 1)
+(setq desktop-globals-to-save
+      (append '((extended-command-history . 30)
+                (file-name-history        . 100)
+                (grep-history             . 30)
+                (compile-history          . 30)
+                (minibuffer-history       . 50)
+                (query-replace-history    . 60)
+                (read-expression-history  . 60)
+                (regexp-history           . 60)
+                (regexp-search-ring       . 20)
+                (search-ring              . 20)
+                (shell-command-history    . 50)
+                tags-file-name
+                register-alist)))
+
+;; configure ibuffer
+(setq ibuffer-default-sorting-mode 'major-mode)
+
+;; Emacs autosave, backup, interlocking files
+(setq auto-save-default nil
+      make-backup-files nil
+      create-lockfiles nil)
+
+;; ensure code wraps at 80 characters by default
+(setq-default fill-column 80)
+
+;; render tabs 2x-chars wide
+(setq tab-width 2)
+
+(put 'narrow-to-region 'disabled nil)
+
+;; trim whitespace on save
+(add-hook 'before-save-hook #'delete-trailing-whitespace)
+
+;; call `git secret hide` after saving secrets.json
+(add-hook 'after-save-hook
+          (lambda ()
+            (when (f-equal? (buffer-file-name)
+                            (f-join tvl-depot-path
+                                    "users"
+                                    "wpcarro"
+                                    "secrets.json"))
+              (shell-command "git secret hide"))))
+
+;; use tabs instead of spaces
+(setq-default indent-tabs-mode nil)
+
+;; prefer shorter tab-widths (e.g. writing Go code)
+(setq-default tab-width 2)
+
+;; automatically follow symlinks
+(setq vc-follow-symlinks t)
+
+;; fullscreen settings
+(setq ns-use-native-fullscreen nil)
+
+(use-package yasnippet
+  :config
+  (unless constants-ci?
+    (setq yas-snippet-dirs (list (f-join user-emacs-directory "snippets")))
+    (yas-global-mode 1)))
+
+(use-package projectile
+  :config
+  (projectile-mode t))
+
+;; TODO(wpcarro): Consider replacing this with a TVL version if it exists.
+(defun wpc-misc--depot-find (dir)
+  "Find the default.nix nearest to DIR."
+  ;; I use 'vc only at the root of my monorepo because 'transient doesn't use my
+  ;; .gitignore, which slows things down. Ideally, I could write a version that
+  ;; behaves like 'transient but also respects my monorepo's .gitignore and any
+  ;; ancestor .gitignore files.
+  (if (f-equal? tvl-depot-path dir)
+      (cons 'vc dir)
+    (when (f-ancestor-of? tvl-depot-path dir)
+      (if (f-exists? (f-join dir "default.nix"))
+          (cons 'transient dir)
+        (wpc-misc--depot-find (f-parent dir))))))
+
+(add-to-list 'project-find-functions #'wpc-misc--depot-find)
+
+(defun wpc-misc-pkill (name)
+  "Call the pkill executable using NAME as its argument."
+  (interactive "sProcess name: ")
+  (call-process "pkill" nil nil nil name))
+
+(use-package deadgrep
+  :config
+  (general-define-key
+   :keymaps 'deadgrep-mode-map
+   :states 'normal
+   "o" #'deadgrep-visit-result-other-window)
+  (setq-default deadgrep--context '(0 . 3))
+  (defun wpc-misc-deadgrep-region ()
+    "Run a ripgrep search on the active region."
+    (interactive)
+    (deadgrep (region-to-string)))
+  (defun wpc-misc-deadgrep-dwim ()
+    "If a region is active, use that as the search, otherwise don't."
+    (interactive)
+    (with-current-buffer (current-buffer)
+      (if (region-active-p)
+          (setq deadgrep--additional-flags '("--multiline"))
+          (wpc-misc-deadgrep-region)
+        (call-interactively #'deadgrep))))
+  (advice-add 'deadgrep--arguments
+              :filter-return
+              (lambda (args)
+                (push "--hidden" args)
+                (push "--follow" args))))
+
+;; TODO: Do I need this when I have swiper?
+(use-package counsel)
+
+(use-package counsel-projectile)
+
+;; search Google, Stackoverflow from within Emacs
+(use-package engine-mode
+  :config
+  (defengine google
+    "http://www.google.com/search?ie=utf-8&oe=utf-8&q=%s"
+    :keybinding "g")
+  (defengine stack-overflow
+    "https://stackoverflow.com/search?q=%s"
+    :keybinding "s"))
+
+;; EGlot (another LSP client)
+(use-package eglot)
+
+;; Microsoft's Debug Adapter Protocol (DAP)
+(use-package dap-mode
+  :after lsp-mode
+  :config
+  (dap-mode 1)
+  (dap-ui-mode 1))
+
+;; Microsoft's Language Server Protocol (LSP)
+(use-package lsp-ui
+  :config
+  (add-hook 'lsp-mode-hook #'lsp-ui-mode))
+
+;; Wilfred/suggest.el - Tool for discovering functions basesd on declaring your
+;; desired inputs and outputs.
+(use-package suggest)
+
+;; Malabarba/paradox - Enhances the `list-packages' view.
+(use-package paradox
+  :config
+  (paradox-enable))
+
+;; render emojis in Emacs ๐Ÿ•บ
+(use-package emojify
+  :config
+  (add-hook 'after-init-hook #'global-emojify-mode)
+  ;; Disable the default styles of:
+  ;; - ascii  :P (When this is enabled, the vim command, :x, renders as ๐Ÿ˜ถ)
+  ;; - github :smile:
+  (setq emojify-emoji-styles '(unicode)))
+
+;; Always auto-close parantheses and other pairs
+(electric-pair-mode)
+
+;; Start the Emacs server
+(when (not (server-running-p))
+  (server-start))
+
+(provide 'wpc-misc)
+;;; wpc-misc.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-nix.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-nix.el
new file mode 100644
index 000000000000..e9dc203691c2
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-nix.el
@@ -0,0 +1,37 @@
+;;; wpc-nix.el --- Nix support -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Configuration to support working with Nix.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'tvl)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package nix-mode
+  :mode "\\.nix\\'")
+
+(defun wpc-nix-rebuild-emacs ()
+  "Use nix-env to rebuild wpcarros-emacs."
+  (interactive)
+  (let* ((pname (format "nix-env -iA users.wpcarro.emacs.nixos"))
+         (bname (format "*%s*" pname)))
+    (start-process pname bname
+                   "nix-env"
+                   "-f" tvl-depot-path
+                   "-iA" "users.wpcarro.emacs.nixos")
+    (display-buffer bname)))
+
+(provide 'wpc-nix)
+;;; wpc-nix.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-org.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-org.el
new file mode 100644
index 000000000000..229177220b1e
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-org.el
@@ -0,0 +1,39 @@
+;;; wpc-org.el --- My org preferences -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.1"))
+
+;;; Commentary:
+;; Hosts my org mode preferences
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'f)
+(require 'macros)
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package org
+  :config
+  (evil-set-initial-state 'org-mode 'normal)
+  (general-add-hook 'org-mode-hook
+                    (list (macros-disable linum-mode)
+                          (macros-disable company-mode)))
+  (setq org-startup-folded nil)
+  (setq org-todo-keywords '((sequence "TODO" "BLOCKED" "DONE")))
+  (general-unbind 'normal org-mode-map "M-h" "M-j" "M-k" "M-l"))
+
+(use-package org-bullets
+  :config
+  (general-add-hook 'org-mode-hook (macros-enable org-bullets-mode)))
+
+(provide 'wpc-org)
+;;; wpc-org.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-package.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-package.el
new file mode 100644
index 000000000000..9c57bb427076
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-package.el
@@ -0,0 +1,32 @@
+;;; wpc-package.el --- My package configuration -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.1"))
+
+;;; Commentary:
+;; This module hosts all of the settings required to work with ELPA,
+;; MELPA, QUELPA, and co.
+
+;;; Code:
+
+(require 'package)
+
+;; Even though we're packaging our Emacs with Nix, having MELPA registered is
+;; helpful to ad-hoc test out packages before declaratively adding them to
+;; emacs/default.nix.
+(add-to-list 'package-archives '("melpa" . "http://melpa.org/packages/"))
+(package-initialize)
+
+(unless (package-installed-p 'use-package)
+  ;; TODO: Consider removing this to improve initialization speed.
+  (package-refresh-contents)
+  (package-install 'use-package))
+(eval-when-compile
+  (require 'use-package))
+;; TODO: Consider removing this, since I'm requiring general.el in individual
+;; modules.
+(use-package general)
+
+(provide 'wpc-package)
+;;; wpc-package.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-prolog.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-prolog.el
new file mode 100644
index 000000000000..6779431c1215
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-prolog.el
@@ -0,0 +1,19 @@
+;;; wpc-prolog.el --- For Prologging things -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Code configuring my Prolog work.
+
+;;; Code:
+
+(require 'macros)
+
+;; TODO: Notice that the .pl extension conflicts with Perl files. This may
+;; become a problem should I start working with Perl.
+(macros-support-file-extension "pl" prolog-mode)
+
+(provide 'wpc-prolog)
+;;; wpc-prolog.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-python.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-python.el
new file mode 100644
index 000000000000..9ffb7c4c8a2b
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-python.el
@@ -0,0 +1,24 @@
+;;; wpc-python.el --- Python configuration -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; My Python configuration settings
+;;
+;; Depends
+;; - `apti yapf`
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package py-yapf
+  :config
+  (add-hook 'python-mode-hook #'py-yapf-enable-on-save))
+
+(provide 'wpc-python)
+;;; wpc-python.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-rust.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-rust.el
new file mode 100644
index 000000000000..b609efb431fd
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-rust.el
@@ -0,0 +1,30 @@
+;;; wpc-rust.el --- Support Rust language -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Supports my Rust work.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'lsp)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package rust-mode
+  :config
+  (setq lsp-rust-server #'rust-analyzer)
+  (setq rust-format-show-buffer nil)
+  (setq rust-format-on-save t)
+  (add-hook 'rust-mode-hook #'lsp))
+
+(provide 'wpc-rust)
+;;; wpc-rust.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-shell.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-shell.el
new file mode 100644
index 000000000000..f4229ed328e7
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-shell.el
@@ -0,0 +1,31 @@
+;;; wpc-shell.el --- POSIX Shell scripting support -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Helpers for my shell scripting.  Includes bash, zsh, etc.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'zle)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Code
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(use-package flymake-shellcheck
+  :commands flymake-shellcheck-load
+  :init
+  (add-hook 'sh-mode-hook #'flymake-shellcheck-load)
+  (add-hook 'sh-mode-hook #'zle-minor-mode))
+
+(use-package fish-mode)
+
+(provide 'wpc-shell)
+;;; wpc-shell.el ends here
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/wpc-ui.el b/users/wpcarro/emacs/.emacs.d/wpc/wpc-ui.el
new file mode 100644
index 000000000000..a2f533cec095
--- /dev/null
+++ b/users/wpcarro/emacs/.emacs.d/wpc/wpc-ui.el
@@ -0,0 +1,186 @@
+;;; wpc-ui.el --- Any related to the UI/UX goes here -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Hosts font settings, scrolling, color schemes.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require '>)
+(require 'al)
+(require 'constants)
+(require 'dash)
+(require 'fonts)
+(require 'general)
+(require 'modeline)
+(require 'prelude)
+(require 'theme)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; line height
+(setq-default line-spacing 0)
+
+(when window-system
+  (setq frame-title-format '(buffer-file-name "%f" ("%b"))))
+
+;; Ensure that buffers update when their contents change on disk.
+(global-auto-revert-mode t)
+
+;; smooth scrolling settings
+(setq scroll-step 1
+      scroll-conservatively 10000)
+
+;; clean up modeline
+(use-package diminish
+  :config
+  (diminish 'emacs-lisp-mode "elisp")
+  (diminish 'evil-commentary-mode)
+  (diminish 'flycheck-mode)
+  (diminish 'auto-revert-mode)
+  (diminish 'which-key-mode)
+  (diminish 'yas-minor-mode)
+  (diminish 'lispyville-mode)
+  (diminish 'undo-tree-mode)
+  (diminish 'company-mode)
+  (diminish 'projectile-mode)
+  (diminish 'eldoc-mode)
+  ;; This is how to diminish `auto-fill-mode'.
+  (diminish 'auto-fill-function)
+  (diminish 'counsel-mode)
+  (diminish 'ivy-mode))
+
+;; TODO: Further customize `mode-line-format' variable.
+(delete 'mode-line-modes mode-line-format)
+(delete '(vc-mode vc-mode) mode-line-format)
+
+;; disable startup screen
+(setq inhibit-startup-screen t)
+
+;; disable toolbar
+(tool-bar-mode -1)
+
+;; premium Emacs themes
+(use-package doom-themes
+  :config
+  (setq doom-themes-enable-bold t
+        doom-themes-enable-italic t)
+  (doom-themes-visual-bell-config)
+  (doom-themes-org-config))
+
+;; kbd discovery
+(use-package which-key
+  :config
+  (setq which-key-idle-delay 0.25)
+  (which-key-mode))
+
+;; completion framework
+(use-package ivy
+  :config
+  (counsel-mode t)
+  (ivy-mode t)
+  ;; Remove preceding "^" from ivy prompts
+  (setq ivy-initial-inputs-alist nil)
+  ;; prefer using `helpful' variants
+  (progn
+    (setq counsel-describe-function-function #'helpful-callable)
+    (setq counsel-describe-variable-function #'helpful-variable))
+  (general-define-key
+   :keymaps '(ivy-minibuffer-map ivy-switch-buffer-map)
+   ;; prev
+   "C-k" #'ivy-previous-line
+   "<backtab>" #'ivy-previous-line
+   ;; next
+   "C-j" #'ivy-next-line
+   "<tab>" #'ivy-next-line))
+
+(use-package ivy-prescient
+  :config
+  (ivy-prescient-mode 1)
+  (unless constants-ci?
+    (prescient-persist-mode 1)))
+
+;; all-the-icons
+(use-package all-the-icons
+  :config
+  (unless (or constants-ci?
+              (f-exists? "~/.local/share/fonts/all-the-icons.ttf")
+              (f-exists? "~/Library/Fonts/all-the-icons.ttf"))
+    (all-the-icons-install-fonts t)))
+
+;; icons for Ivy
+(use-package all-the-icons-ivy
+  :after (ivy all-the-icons)
+  :config
+  (all-the-icons-ivy-setup))
+
+;; disable menubar
+(menu-bar-mode -1)
+
+;; reduce noisiness of auto-revert-mode
+(setq auto-revert-verbose nil)
+
+;; highlight lines that are over 80 characters long
+(use-package whitespace
+  :config
+  ;; TODO: This should change depending on the language and project. For
+  ;; example, Google Java projects prefer 100 character width instead of 80
+  ;; character width.
+  (setq whitespace-line-column 80)
+  (setq whitespace-style '(face lines-tail tabs))
+  (global-whitespace-mode t))
+
+;; dirname/filename instead of filename<dirname>
+(setq uniquify-buffer-name-style 'forward)
+
+;; highlight matching parens, brackets, etc
+(show-paren-mode 1)
+
+;; hide the scroll-bars in the GUI
+(scroll-bar-mode -1)
+
+;; TODO: Learn how to properly integrate this with dunst or another system-level
+;; notification program.
+;; GUI alerts in emacs
+(use-package alert
+  :commands (alert)
+  :config
+  (setq alert-default-style 'notifier))
+
+(display-battery-mode 1)
+
+(setq theme-whitelist
+      (->> (custom-available-themes)
+           (list-map #'symbol-name)
+           (list-filter (>-> (s-starts-with? "doom-")))
+           (list-map #'intern)
+           cycle-from-list))
+(setq theme-linum-color-override "da5478")
+(add-hook 'theme-after-change
+          (lambda () (prelude-set-line-number-color "#da5478")))
+(theme-whitelist-set 'doom-flatwhite)
+
+(when window-system
+  ;; On OSX, JetBrainsMono is installed as "JetBrains Mono", and I'm
+  ;; not sure how to change that.
+  (let ((font (if constants-osx? "JetBrains Mono" "JetBrainsMono")))
+    (fonts-set font)
+    ;; Some themes (e.g. doom-acario-*) change the font for comments. This
+    ;; should prevent that.
+    (set-face-attribute font-lock-comment-face nil
+                        :family font
+                        :slant 'normal)))
+
+(modeline-setup)
+
+(provide 'wpc-ui)
+;;; wpc-ui.el ends here
diff --git a/users/wpcarro/emacs/AppIcon.icns b/users/wpcarro/emacs/AppIcon.icns
new file mode 100644
index 000000000000..b3be251ccf8e
--- /dev/null
+++ b/users/wpcarro/emacs/AppIcon.icns
Binary files differdiff --git a/users/wpcarro/emacs/README.md b/users/wpcarro/emacs/README.md
new file mode 100644
index 000000000000..16f4fc31f989
--- /dev/null
+++ b/users/wpcarro/emacs/README.md
@@ -0,0 +1,15 @@
+# Emacs
+
+Emacs is one of a handful software projects that I highly value. I consider it
+as central to my workflow as `git` and `nix`.
+
+## Installing
+
+If you already have `depot` on your local file system, run the following from
+the top-level `depot` directory:
+
+```shell
+$ nix-env -iA users.wpcarro.emacs.nixos
+```
+
+Test edit (from depot).
diff --git a/users/wpcarro/emacs/ci.el b/users/wpcarro/emacs/ci.el
new file mode 100644
index 000000000000..9dfaf3056fdc
--- /dev/null
+++ b/users/wpcarro/emacs/ci.el
@@ -0,0 +1,44 @@
+;; This script initializes Emacs and exits with either a zero or non-zero status
+;; depending on whether or not Emacs initialized without logging warnings or
+;; encountering errors.
+;;
+;; This script reads the location of init.el as the last argument in `argv'.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'prelude)
+(require 'f)
+(require 'dash)
+(require 'buffer)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Script
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defvar init-el-path (-last-item argv)
+  "Path to the init.el file that this script attempts to load.")
+
+(prelude-assert (f-exists? init-el-path))
+
+(condition-case err
+    (load init-el-path)
+  (error
+   (message "Encountered an error while attempting to load init.el: %s" err)
+   (kill-emacs 1)))
+
+(when (buffer-exists? "*Errors*")
+  (progn
+    (with-current-buffer "*Errors*"
+      (message "Encountered errors in *Errors* buffer: %s" (buffer-string)))
+    (kill-emacs 1)))
+
+(when (buffer-exists? "*Warnings*")
+  (progn
+    (with-current-buffer "*Warnings*"
+      (message "Encountered warnings in *Warnings* buffer: %s" (buffer-string)))
+    (kill-emacs 1)))
+
+(message "Successfully initialized Emacs without errors or warnings!")
+(kill-emacs 0)
diff --git a/users/wpcarro/emacs/default.nix b/users/wpcarro/emacs/default.nix
new file mode 100644
index 000000000000..78c66c693d09
--- /dev/null
+++ b/users/wpcarro/emacs/default.nix
@@ -0,0 +1,265 @@
+# My Emacs distribution, which is supporting the following platforms:
+# - Linux
+# - Darwin
+#
+# USAGE:
+#   $ nix-build -A users.wpcarro.emacs.osx -o /Applications/BillsEmacs.app
+{ depot, pkgs, lib, ... }:
+
+# TODO(wpcarro): See if it's possible to expose emacsclient on PATH, so that I
+# don't need to depend on wpcarros-emacs and emacs in my NixOS configurations.
+let
+  inherit (depot.third_party.nixpkgs) emacsPackagesFor emacs28;
+  inherit (depot.users) wpcarro;
+  inherit (lib) mapAttrsToList;
+  inherit (lib.strings) concatStringsSep makeBinPath;
+  inherit (pkgs) runCommand writeShellScriptBin;
+
+  emacsBinPath = makeBinPath (
+    wpcarro.common.shell-utils ++
+    # Rust dependencies
+    (with pkgs; [
+      cargo
+      rust-analyzer
+      rustc
+      rustfmt
+    ]) ++
+    # Misc dependencies
+    (with pkgs; [
+      ispell
+      nix
+      rust-analyzer
+      rustc
+      rustfmt
+      xorg.xset
+    ] ++
+    (if pkgs.stdenv.isLinux then [
+      scrot
+    ] else [ ]))
+  );
+
+  emacsWithPackages = (emacsPackagesFor emacs28).emacsWithPackages;
+
+  wpcarrosEmacs = emacsWithPackages (epkgs:
+    (with wpcarro.emacs.pkgs; [
+      al
+      bookmark
+      cycle
+      list
+      macros
+      maybe
+      passage
+      set
+      string
+      struct
+      symbol
+      theme
+      tuple
+      vterm-mgt
+      zle
+    ]) ++
+
+    (with epkgs.tvlPackages; [
+      tvl
+    ]) ++
+
+    (with epkgs.elpaPackages; [
+      exwm
+    ]) ++
+
+    (with epkgs.melpaPackages; [
+      alert
+      all-the-icons
+      all-the-icons-ivy
+      avy
+      base16-theme
+      cider
+      clojure-mode
+      company
+      counsel
+      counsel-projectile
+      csharp-mode
+      dap-mode
+      dash
+      deadgrep
+      deferred
+      diminish
+      direnv
+      dockerfile-mode
+      doom-themes
+      elisp-slime-nav
+      elixir-mode
+      elm-mode
+      emojify
+      engine-mode
+      evil
+      evil-collection
+      evil-commentary
+      evil-surround
+      f
+      fish-mode
+      flycheck
+      flymake-shellcheck
+      general
+      go-mode
+      haskell-mode
+      helpful
+      ivy
+      ivy-clipmenu
+      ivy-prescient
+      key-chord
+      lispyville
+      lsp-ui
+      magit
+      magit-popup
+      markdown-mode
+      nix-mode
+      notmuch
+      org-bullets
+      package-lint
+      paradox
+      parsec
+      pcre2el
+      prettier-js
+      projectile
+      py-yapf
+      racket-mode
+      rainbow-delimiters
+      reason-mode
+      refine
+      request
+      restclient
+      rjsx-mode
+      rust-mode
+      sly
+      suggest
+      telephone-line
+      terraform-mode
+      tide
+      ts
+      tuareg
+      use-package
+      vterm
+      web-mode
+      which-key
+      yaml-mode
+      yasnippet
+    ]) ++
+
+    [
+      epkgs.eglot # from elpa devel
+    ]);
+
+  loadPath = concatStringsSep ":" [
+    ./.emacs.d/wpc
+    # TODO(wpcarro): Explain why the trailing ":" is needed.
+    "${wpcarrosEmacs.deps}/share/emacs/site-lisp:"
+  ];
+
+  # Transform an attrset into "export k=v" statements.
+  makeEnvVars = env: concatStringsSep "\n"
+    (mapAttrsToList (k: v: "export ${k}=\"${v}\"") env);
+
+  withEmacsPath = { emacsBin, env ? { }, load ? [ ] }:
+    writeShellScriptBin "wpcarros-emacs" ''
+      export XMODIFIERS=emacs
+      export PATH="${emacsBinPath}:$PATH"
+      export EMACSLOADPATH="${loadPath}"
+      ${makeEnvVars env}
+      exec ${emacsBin} \
+        --debug-init \
+        --no-init-file \
+        --no-site-file \
+        --no-site-lisp \
+        --load ${./.emacs.d/init.el} \
+        ${concatStringsSep "\n  " (map (el: "--load ${el} \\") load)}
+        "$@"
+    '';
+
+  # I can't figure out how to augment LSEnvironment.PATH such that it inherits
+  # the default $PATH and adds the things that I need as well, so let's
+  # hardcode the desired outcome in the meantime.
+  osxDefaultPath = builtins.concatStringsSep ":" [
+    "/Users/bill/.nix-profile/bin"
+    "/nix/var/nix/profiles/default/bin"
+    "/opt/homebrew/bin"
+    "/opt/homebrew/sbin"
+    "/usr/local/bin"
+    "/usr/bin"
+    "/bin"
+    "/usr/sbin"
+    "/sbin"
+    "/opt/X11/bin"
+  ];
+
+  infoPlist = pkgs.writeText "Info.plist" (pkgs.lib.generators.toPlist { } {
+    LSEnvironment = {
+      PATH = "${emacsBinPath}:${osxDefaultPath}";
+    };
+    CFBundleExecutable = "BillsEmacs";
+    CFBundleDisplayName = "BillsEmacs";
+    CFBundleIconFile = "AppIcon";
+    CFBundleIconName = "AppIcon";
+  });
+
+  versionPlist = pkgs.writeText "version.plist" (pkgs.lib.generators.toPlist { } {
+    ProjectName = "OSXPlatformSupport";
+  });
+in
+{
+  # TODO(wpcarro): Support this with base.overrideAttrs or something similar.
+  nixos = { load ? [ ] }: withEmacsPath {
+    inherit load;
+    emacsBin = "${wpcarrosEmacs}/bin/emacs";
+  };
+
+  # To install GUI:
+  # $ nix-build -A users.wpcarro.emacs.osx -o /Applications/BillsEmacs.app
+  osx = pkgs.stdenv.mkDerivation {
+    pname = "bills-emacs";
+    version = "0.0.1";
+    src = ./.;
+    dontFixup = true;
+    installPhase = ''
+      runHook preInstall
+      APP="$out"
+      mkdir -p "$APP/Contents/MacOS"
+      mkdir -p "$APP/Contents/Resources"
+      cp ${infoPlist}      "$APP/Contents/Info.plist"
+      cp ${versionPlist}   "$APP/Contents/version.plist"
+      cp ${./AppIcon.icns} "$APP/Contents/Resources/AppIcon.icns"
+      echo "APPL????"  > "$APP/Contents/PkgInfo"
+      cat << EOF > "$APP/Contents/MacOS/BillsEmacs"
+      #!${pkgs.stdenvNoCC.shell}
+      export EMACSLOADPATH="${loadPath}"
+      exec ${wpcarrosEmacs}/bin/emacs \
+        --debug-init \
+        --no-init-file \
+        --no-site-file \
+        --no-site-lisp \
+        --load ${./.emacs.d/init.el}
+      EOF
+      chmod +x "$APP/Contents/MacOS/BillsEmacs"
+      runHook postInstall
+    '';
+    meta.platforms = [ "aarch64-darwin" ];
+  };
+
+  # Script that asserts my Emacs can initialize without warnings or errors.
+  check = runCommand "check-emacs" { } ''
+    # Even though Buildkite defines this, I'd still like still be able to test
+    # this locally without depending on my ability to remember to set CI=true.
+    export CI=true
+    export PATH="${emacsBinPath}:$PATH"
+    export EMACSLOADPATH="${loadPath}"
+    ${wpcarrosEmacs}/bin/emacs \
+      --no-site-file \
+      --no-site-lisp \
+      --no-init-file \
+      --script ${./ci.el} \
+      ${./.emacs.d/init.el} && \
+    touch $out
+  '';
+
+  meta.ci.targets = [ "check" ];
+}
diff --git a/users/wpcarro/emacs/elisp-conventions.md b/users/wpcarro/emacs/elisp-conventions.md
new file mode 100644
index 000000000000..0e39c3069d8b
--- /dev/null
+++ b/users/wpcarro/emacs/elisp-conventions.md
@@ -0,0 +1,20 @@
+# Elisp Conventions
+
+Some of this aligns with existing style guides. Some of it does not.
+
+In general, prefer functions with fixed arities instead of variadic
+alternatives.
+
+- Namespace functions with `namespace/function-name`
+- Use `ensure`, `assert`, `refute` whenever possible.
+- When talking about encoding and decoding, let's use the words "encoding" and
+  "decoding" rather than the myriad of other variants that appear like:
+  - `marshalling` and `unmarshalling`
+  - `parse` and `deparse`, `serialize`, `stringify`
+  - `unpickle` and `pickle` (Python)
+  - `from-string` and `to-string`
+  - TODO: Add more examples of these; there should be close to a dozen.
+- Annotate assertions with `!` endings.
+- Prefer the Scheme style of `predicate?`
+- Variadic functions *should* encode this by appending * onto their
+  name. E.g. `maybe/nil?*`
diff --git a/users/wpcarro/emacs/keybindings.md b/users/wpcarro/emacs/keybindings.md
new file mode 100644
index 000000000000..96ba7c96459b
--- /dev/null
+++ b/users/wpcarro/emacs/keybindings.md
@@ -0,0 +1,47 @@
+# Keybindings
+
+Since I'm using Emacs to manage most of my workflow, all of the keybindings
+should be defined herein and -- in order to scale -- order must be imposed. This
+can help avoid KBD collisions and improve my ability to remember each KBD.
+
+See `kbd.el` for the programmatic encoding of these principles.
+
+## Troubleshooting
+
+When in doubt, use Emacs's `read-key` and `read-event` to learn what signal
+you're sending Emacs.
+
+### Super-
+
+- EXWM X11 windows are not processing `s-`.
+- EXWM X11 windows are not processing `<M-ESC>`.
+
+### Super-Ctrl-
+
+I'm reserving `C-s-` for opening X11 applications.
+
+- `terminator`: `t`
+- `google-chrome`: `c`
+
+## Emacs nouns
+
+Most of my keybindings should be organized according to their function, which in
+turn should be related to the following Emacs nouns.
+
+- `workspace`: As defined by EXWM.
+- `frame`: What non-Emacs users would call a "window". Currently my workflow
+  doesn't use or rely on Emacs frames.
+- `window`: A vertical or horizontal split within an Emacs frame.
+- `buffer`: Anything storing text in memory.
+
+## Prefixes and their meanings
+
+TODO: Have a system for leader-prefixed KBDs, chords, and prefixed chords.
+
+- `s-`: Switching between named workspaces. Right now, super is too overloaded
+  and would benefit from having more deliberate keybindings.
+- `C-M-`: Window sizing
+- `M-{h,j,k,l}`: Window traversing
+- `M-{\,-}`: Window splitting
+- `M-q`: Window deletion
+- `<leader>-q`: Window deletion
diff --git a/users/wpcarro/emacs/pkgs/al/al.el b/users/wpcarro/emacs/pkgs/al/al.el
new file mode 100644
index 000000000000..4c37526c644a
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/al/al.el
@@ -0,0 +1,227 @@
+;;; al.el --- Interface for working with associative lists -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Firstly, a rant:
+;; In most cases, I find Elisp's APIs to be confusing.  There's a mixture of
+;; overloaded functions that leak the implementation details (TODO: provide an
+;; example of this.) of the abstract data type, which I find privileges those
+;; "insiders" who spend disproportionately large amounts of time in Elisp land,
+;; and other functions with little-to-no pattern about the order in which
+;; arguments should be applied.  In theory, however, most of these APIs could
+;; and should be much simpler.  This module represents a step in that direction.
+;;
+;; I'm modelling these APIs after Elixir's APIs.
+;;
+;; On my wishlist is to create protocols that will allow generic interfaces like
+;; Enum protocols, etc.  Would be nice to abstract over...
+;; - associative lists (i.e. alists)
+;; - property lists (i.e. plists)
+;; - hash tables
+;; ...with some dictionary or map-like interface.  This will probably end up
+;; being quite similar to the kv.el project but with differences at the API
+;; layer.
+;;
+;; Similar libraries:
+;; - map.el: Comes bundled with recent versions of Emacs.
+;; - asoc.el: Helpers for working with alists.  asoc.el is similar to alist.el
+;;   because it uses the "!" convention for signalling that a function mutates
+;;   the underlying data structure.
+;; - ht.el: Hash table library.
+;; - kv.el: Library for dealing with key-value collections.  Note that map.el
+;;   has a similar typeclass because it works with lists, hash-tables, or
+;;   arrays.
+;; - a.el: Clojure-inspired way of working with key-value data structures in
+;; Elisp.  Works with alists, hash-tables, and sometimes vectors.
+;;
+;; Some API design principles:
+;; - The "noun" (i.e. alist) of the "verb" (i.e. function) comes last to improve
+;; composability with the threading macro (i.e. `->>') and to improve consumers'
+;; intuition with the APIs.  Learn this once, know it always.
+;;
+;; - Every function avoids mutating the alist unless it ends with !.
+;;
+;; - CRUD operations will be named according to the following table:
+;;   - "create" *and* "set"
+;;   - "read"   *and* "get"
+;;   - "update"
+;;   - "delete" *and* "remove"
+;;
+;; For better or worse, all of this code expects alists in the form of:
+;; ((first-name . "William") (last-name . "Carroll"))
+;;
+;; Special thanks to github.com/alphapapa/emacs-package-dev-handbook for some of
+;; the idiomatic ways to update alists.
+;;
+;; TODO: Include a section that compares alist.el to a.el from
+;; github.com/plexus/a.el.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies:
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'dash)
+(require 'list)
+(require 'map)
+
+;; TODO: Support function aliases for:
+;; - create/set
+;; - read/get
+;; - update
+;; - delete/remove
+
+;; Support mutative variants of functions with an ! appendage to their name.
+
+;; Ensure that the same message about only updating the first occurrence of a
+;; key is consistent throughout documentation using string interpolation or some
+;; other mechanism.
+
+;; TODO: Consider wrapping all of this with `(cl-defstruct alist xs)'.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Support a variadic version of this to easily construct alists.
+(defun al-new ()
+  "Return a new, empty alist."
+  '())
+
+;; Create
+;; TODO: See if this mutates.
+(defun al-set (k v xs)
+  "Set K to V in XS."
+  (if (al-has-key? k xs)
+      (progn
+        ;; Note: this is intentional `alist-get' and not `al-get'.
+        (setf (alist-get k xs) v)
+        xs)
+    (list-cons `(,k . ,v) xs)))
+
+(defun al-set! (k v xs)
+  "Set K to V in XS mutatively.
+Note that this doesn't append to the alist in the way that most alists handle
+  writing.  If the k already exists in XS, it is overwritten."
+  (map-delete xs k)
+  (map-put! xs k v))
+
+;; Read
+(defun al-get (k xs &optional default)
+  "Return the value at K in XS; otherwise, return nil or DEFAULT (if set).
+Returns the first occurrence of K in XS since alists support multiple entries."
+  (if (not (al-has-key? k xs))
+      default
+    (cdr (assoc k xs))))
+
+(defun al-get-entry (k xs)
+  "Return the first key-value pair at K in XS."
+  (assoc k xs))
+
+;; Update
+;; TODO: Add warning about only the first occurrence being updated in the
+;; documentation.
+(defun al-update (k f xs)
+  "Apply F to the value stored at K in XS.
+If `K' is not in `XS', this function errors.  Use `al-upsert' if you're
+interested in inserting a value when a key doesn't already exist."
+  (if (not (al-has-key? k xs))
+      (error "Refusing to update: key does not exist in alist")
+    (al-set k (funcall f (al-get k xs)) xs)))
+
+(defun al-update! (k f xs)
+  "Call F on the entry at K in XS.
+Mutative variant of `al-update'."
+  (al-set! k (funcall f (al-get k xs))xs))
+
+;; TODO: Support this.
+(defun al-upsert (k v f xs)
+  "If K exists in `XS' call `F' on the value otherwise insert `V'."
+  (if (al-has-key? k xs)
+      (al-update k f xs)
+    (al-set k v xs)))
+
+;; Delete
+;; TODO: Make sure `delete' and `remove' behave as advertised in the Elisp docs.
+(defun al-delete (k xs)
+  "Deletes the entry of K from XS.
+This only removes the first occurrence of K, since alists support multiple
+  key-value entries.  See `al-delete-all' and `al-dedupe'."
+  (remove (assoc k xs) xs))
+
+(defun al-delete! (k xs)
+  "Delete the entry of K from XS.
+Mutative variant of `al-delete'."
+  (delete (assoc k xs) xs))
+
+;; Additions to the CRUD API
+;; TODO: Implement this function.
+(defun al-dedupe-keys (xs)
+  "Remove the entries in XS where the keys are `equal'.")
+
+(defun al-dedupe-entries (xs)
+  "Remove the entries in XS where the key-value pair are `equal'."
+  (delete-dups xs))
+
+(defun al-keys (xs)
+  "Return a list of the keys in XS."
+  (mapcar 'car xs))
+
+(defun al-values (xs)
+  "Return a list of the values in XS."
+  (mapcar 'cdr xs))
+
+(defun al-has-key? (k xs)
+  "Return t if XS has a key `equal' to K."
+  (not (eq nil (assoc k xs))))
+
+(defun al-has-value? (v xs)
+  "Return t if XS has a value of V."
+  (not (eq nil (rassoc v xs))))
+
+(defun al-count (xs)
+  "Return the number of entries in XS."
+  (length xs))
+
+;; TODO: Should I support `al-find-key' and `al-find-value' variants?
+(defun al-find (p xs)
+  "Find an element in XS.
+
+Apply a predicate fn, P, to each key and value in XS and return the key of the
+first element that returns t."
+  (let ((result (list-find (lambda (x) (funcall p (car x) (cdr x))) xs)))
+    (if result
+        (car result)
+      nil)))
+
+(defun al-map-keys (f xs)
+  "Call F on the values in XS, returning a new alist."
+  (list-map (lambda (x)
+              `(,(funcall f (car x)) . ,(cdr x)))
+            xs))
+
+(defun al-map-values (f xs)
+  "Call F on the values in XS, returning a new alist."
+  (list-map (lambda (x)
+              `(,(car x) . ,(funcall f (cdr x))))
+            xs))
+
+(defun al-reduce (acc f xs)
+  "Return a new alist by calling F on k v and ACC from XS.
+F should return a tuple.  See tuple.el for more information."
+  (->> (al-keys xs)
+       (list-reduce acc
+                    (lambda (k acc)
+                      (funcall f k (al-get k xs) acc)))))
+
+(defun al-merge (a b)
+  "Return a new alist with a merge of alists, A and B.
+In this case, the last writer wins, which is B."
+  (al-reduce a #'al-set b))
+
+(provide 'al)
+;;; al.el ends here
diff --git a/users/wpcarro/emacs/pkgs/al/default.nix b/users/wpcarro/emacs/pkgs/al/default.nix
new file mode 100644
index 000000000000..d88e0757a875
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/al/default.nix
@@ -0,0 +1,28 @@
+{ pkgs, depot, ... }:
+
+let
+  al = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "al";
+        version = "1.0.0";
+        src = ./al.el;
+        packageRequires =
+          (with emacsPackages; [
+            dash
+          ]) ++
+          (with depot.users.wpcarro.emacs.pkgs; [
+            list
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [ al ]);
+in
+al.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/al/tests.el b/users/wpcarro/emacs/pkgs/al/tests.el
new file mode 100644
index 000000000000..04fe4dcbb5a6
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/al/tests.el
@@ -0,0 +1,53 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'al)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest al-has-key? ()
+  (should (al-has-key? 'fname '((fname . "William"))))
+  (should (not (al-has-key? 'lname '((fname . "William"))))))
+
+(ert-deftest al-get ()
+  (let ((xs (->> (al-new)
+                 (al-set 'fname "John")
+                 (al-set 'employed? nil))))
+    (should (string= "John" (al-get 'fname xs)))
+    (should (string= "Cleese" (al-get 'lname xs "Cleese")))
+    ;; Test that the value of nil is returned even when a default is defined,
+    ;; which could be a subtle bug in the typical Elisp pattern of supporting
+    ;; defaults with: (or foo default).
+    (should (eq nil (al-get 'employed? xs)))
+    (should (eq nil (al-get 'employed? xs "default")))))
+
+(ert-deftest al-has-value? ()
+  (should (al-has-value? "William" '((fname . "William"))))
+  (should (not (al-has-key? "John" '((fname . "William"))))))
+
+(ert-deftest al-map-keys ()
+  (should
+   (equal '((2 . one)
+            (3 . two))
+          (al-map-keys #'1+
+                       '((1 . one)
+                         (2 . two))))))
+
+(ert-deftest al-map-values ()
+  (should (equal '((one . 2)
+                   (two . 3))
+                 (al-map-values #'1+
+                                '((one . 1)
+                                  (two . 2))))))
+
+(ert-deftest al-delete ()
+  (let ((person (->> (al-new)
+                     (al-set "fname" "John")
+                     (al-set "lname" "Cleese")
+                     (al-set "age" 82))))
+    (should (al-has-key? "age" person))
+    (should (not (al-has-key? "age" (al-delete "age" person))))))
diff --git a/users/wpcarro/emacs/pkgs/bag/bag.el b/users/wpcarro/emacs/pkgs/bag/bag.el
new file mode 100644
index 000000000000..502f5672536e
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bag/bag.el
@@ -0,0 +1,78 @@
+;;; bag.el --- Working with bags (aka multi-sets) -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; What is a bag?  A bag should be thought of as a frequency table.  It's a way
+;; to convert a list of something into a set that allows duplicates.  Isn't
+;; allowing duplicates the whole thing with Sets?  Kind of.  But the interface
+;; of Sets is something that bags resemble, so multi-set isn't as bad of a name
+;; as it may first seem.
+;;
+;; If you've used Python's collections.Counter, the concept of a bag should be
+;; familiar already.
+;;
+;; Interface:
+;; - add        :: x -> Bag(x) -> Bag(x)
+;; - remove     :: x -> Bag(x) -> Bag(x)
+;; - union      :: Bag(x) -> Bag(x) -> Bag(x)
+;; - difference :: Bag(x) -> Bag(x) -> Bag(x)
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'al)
+(require 'list)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct bag xs)
+
+(defun bag-new ()
+  "Create an empty bag."
+  (make-bag :xs (al-new)))
+
+(defun bag-from-list (xs)
+  "Map a list of `XS' into a bag."
+  (->> xs
+       (list-reduce (bag-new) #'bag-add)))
+
+(defun bag-add (x xs)
+  "Add X to XS."
+  (if (bag-contains? x xs)
+      (struct-update
+       bag xs (lambda (xs) (al-update x (lambda (x) (+ 1 x)) xs)) xs)
+    (struct-update bag xs (lambda (xs) (al-set x 1 xs)) xs)))
+
+(defun bag-remove (x xs)
+  "Remove X from XS.
+This is a no-op is X doesn't exist in XS."
+  (when (bag-contains? x xs)
+    (struct-update bag xs (lambda (xs) (al-delete x xs)) xs)))
+
+(defun bag-count (x xs)
+  "Return the number of occurrences of X in XS."
+  (al-get x (bag-xs xs) 0))
+
+(defun bag-total (xs)
+  "Return the total number of elements in XS."
+  (->> (bag-xs xs)
+       (al-reduce 0 (lambda (_key v acc) (+ acc v)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun bag-contains? (x xs)
+  "Return t if XS has X."
+  (al-has-key? x (bag-xs xs)))
+
+(provide 'bag)
+;;; bag.el ends here
diff --git a/users/wpcarro/emacs/pkgs/bag/default.nix b/users/wpcarro/emacs/pkgs/bag/default.nix
new file mode 100644
index 000000000000..3dedc27286d1
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bag/default.nix
@@ -0,0 +1,26 @@
+{ pkgs, depot, ... }:
+
+let
+  bag = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "bag";
+        version = "1.0.0";
+        src = ./bag.el;
+        packageRequires =
+          (with depot.users.wpcarro.emacs.pkgs; [
+            al
+            list
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [ bag ]);
+in
+bag.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/bag/tests.el b/users/wpcarro/emacs/pkgs/bag/tests.el
new file mode 100644
index 000000000000..4970f70815c9
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bag/tests.el
@@ -0,0 +1,32 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'bag)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(setq fixture (bag-from-list '(1 1 1 2 2 3)))
+
+(ert-deftest bag-add ()
+  (should (not (bag-contains? 4 fixture)))
+  (should (bag-contains? 4 (bag-add 4 fixture))))
+
+(ert-deftest bag-remove ()
+  (should (bag-contains? 1 fixture))
+  (should (not (bag-contains? 3 (bag-remove 3 fixture)))))
+
+(ert-deftest bag-count ()
+  (should (= 3 (bag-count 1 fixture)))
+  (should (= 2 (bag-count 2 fixture)))
+  (should (= 1 (bag-count 3 fixture))))
+
+(ert-deftest bag-total ()
+  (should (= 6 (bag-total fixture))))
+
+(ert-deftest bag-contains? ()
+  (should (bag-contains? 1 fixture))
+  (should (not (bag-contains? 4 fixture))))
diff --git a/users/wpcarro/emacs/pkgs/bookmark/bookmark.el b/users/wpcarro/emacs/pkgs/bookmark/bookmark.el
new file mode 100644
index 000000000000..ab9169a078d4
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bookmark/bookmark.el
@@ -0,0 +1,50 @@
+;;; bookmark.el --- Saved files and directories on my filesystem -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; A more opinionated version of Emacs's builtin `jump-to-register'.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'project)
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct bookmark label path kbd)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; API
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun bookmark-open (b)
+  "Open bookmark, B, as either a project directory or a regular directory."
+  (with-temp-buffer
+    (cd (bookmark-path b))
+    (call-interactively #'project-find-file)))
+
+(defun bookmark-install-kbd (b)
+  "Define two functions to explore B and assign them to keybindings."
+  (eval `(defun ,(intern (format "bookmark-visit-%s" (bookmark-label b))) ()
+           (interactive)
+           (find-file ,(bookmark-path b))))
+  (eval `(defun ,(intern (format "bookmark-browse-%s" (bookmark-label b))) ()
+           (interactive)
+           (bookmark-open ,b)))
+  (general-define-key
+   :prefix "<SPC>"
+   :states '(motion)
+   (format "J%s" (bookmark-kbd b)) `,(intern (format "bookmark-visit-%s" (bookmark-label b)))
+   (format "j%s" (bookmark-kbd b)) `,(intern (format "bookmark-browse-%s" (bookmark-label b)))))
+
+(provide 'bookmark)
+;;; bookmark.el ends here
diff --git a/users/wpcarro/emacs/pkgs/bookmark/default.nix b/users/wpcarro/emacs/pkgs/bookmark/default.nix
new file mode 100644
index 000000000000..882481701fa2
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bookmark/default.nix
@@ -0,0 +1,13 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "bookmark";
+    version = "1.0.0";
+    src = ./bookmark.el;
+    packageRequires = (with pkgs.emacsPackages; [
+      general
+    ]);
+  })
+{ }
diff --git a/users/wpcarro/emacs/pkgs/bytes/bytes.el b/users/wpcarro/emacs/pkgs/bytes/bytes.el
new file mode 100644
index 000000000000..b0d64795a074
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bytes/bytes.el
@@ -0,0 +1,94 @@
+;;; bytes.el --- Working with byte values -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Functions to help with human-readable representations of byte values.
+;;
+;; Usage:
+;; See the test cases for example usage.  Or better yet, I should use a type of
+;; structured documentation that would allow me to expose a view into the test
+;; suite here.  Is this currently possible in Elisp?
+;;
+;; API:
+;; - serialize :: Integer -> String
+;;
+;; Wish list:
+;; - Rounding: e.g. (bytes (* 1024 1.7)) => "2KB"
+
+;;; Code:
+
+;; TODO: Support -ibabyte variants like Gibibyte (GiB).
+
+;; Ranges:
+;;  B: [   0,  1e3)
+;; KB: [ 1e3,  1e6)
+;; MB: [ 1e6,  1e6)
+;; GB: [ 1e9, 1e12)
+;; TB: [1e12, 1e15)
+;; PB: [1e15, 1e18)
+;;
+;; Note: I'm currently not support exabytes because that causes the integer to
+;;  overflow.  I imagine a larger integer type may exist, but for now, I'll
+;;  treat this as a YAGNI.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'tuple)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst bytes-kb (expt 2 10)
+  "Number of bytes in a kilobyte.")
+
+(defconst bytes-mb (expt 2 20)
+  "Number of bytes in a megabytes.")
+
+(defconst bytes-gb (expt 2 30)
+  "Number of bytes in a gigabyte.")
+
+(defconst bytes-tb (expt 2 40)
+  "Number of bytes in a terabyte.")
+
+(defconst bytes-pb (expt 2 50)
+  "Number of bytes in a petabyte.")
+
+(defconst bytes-eb (expt 2 60)
+  "Number of bytes in an exabyte.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun bytes-classify (x)
+  "Return unit that closest fits byte count, X."
+  (cond
+   ((and (>= x 0)        (< x bytes-kb))     'byte)
+   ((and (>= x bytes-kb) (< x bytes-mb)) 'kilobyte)
+   ((and (>= x bytes-mb) (< x bytes-gb)) 'megabyte)
+   ((and (>= x bytes-gb) (< x bytes-tb)) 'gigabyte)
+   ((and (>= x bytes-tb) (< x bytes-pb)) 'terabyte)
+   ((and (>= x bytes-pb) (< x bytes-eb)) 'petabyte)))
+
+(defun bytes-to-string (x)
+  "Convert integer X into a human-readable string."
+  (let ((base-and-unit
+         (pcase (bytes-classify x)
+           ('byte     (tuple-from        1 "B"))
+           ('kilobyte (tuple-from bytes-kb "KB"))
+           ('megabyte (tuple-from bytes-mb "MB"))
+           ('gigabyte (tuple-from bytes-gb "GB"))
+           ('terabyte (tuple-from bytes-tb "TB"))
+           ('petabyte (tuple-from bytes-pb "PB")))))
+    (format "%d%s"
+            (round x (tuple-first base-and-unit))
+            (tuple-second base-and-unit))))
+
+(provide 'bytes)
+;;; bytes.el ends here
diff --git a/users/wpcarro/emacs/pkgs/bytes/default.nix b/users/wpcarro/emacs/pkgs/bytes/default.nix
new file mode 100644
index 000000000000..4e9f52d9b927
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bytes/default.nix
@@ -0,0 +1,25 @@
+{ pkgs, depot, ... }:
+
+let
+  bytes = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "bytes";
+        version = "1.0.0";
+        src = ./bytes.el;
+        packageRequires =
+          (with depot.users.wpcarro.emacs.pkgs; [
+            tuple
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [ bytes ]);
+in
+bytes.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/bytes/tests.el b/users/wpcarro/emacs/pkgs/bytes/tests.el
new file mode 100644
index 000000000000..9b71a466c736
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/bytes/tests.el
@@ -0,0 +1,18 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'bytes)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest bytes-to-string ()
+  (should (equal "1000B" (bytes-to-string 1000)))
+  (should (equal "2KB" (bytes-to-string (* 2 bytes-kb))))
+  (should (equal "17MB" (bytes-to-string (* 17 bytes-mb))))
+  (should (equal "419GB" (bytes-to-string (* 419 bytes-gb))))
+  (should (equal "999TB" (bytes-to-string (* 999 bytes-tb))))
+  (should (equal "2PB" (bytes-to-string (* 2 bytes-pb)))))
diff --git a/users/wpcarro/emacs/pkgs/cycle/README.md b/users/wpcarro/emacs/pkgs/cycle/README.md
new file mode 100644
index 000000000000..416900d2532b
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/cycle/README.md
@@ -0,0 +1,7 @@
+# cycle.el
+
+[![Build status](https://badge.buildkite.com/016bff4b8ae2704a3bbbb0a250784e6692007c582983b6dea7.svg?branch=refs/heads/canon)](https://buildkite.com/tvl/depot)
+
+Cycle data structure exposing mutable and (coming soon!) immutable APIs.
+
+[![asciicast](https://asciinema.org/a/FvFujpRpYjV9qCSGvk3uobOpV.svg)](https://asciinema.org/a/FvFujpRpYjV9qCSGvk3uobOpV)
diff --git a/users/wpcarro/emacs/pkgs/cycle/cycle.el b/users/wpcarro/emacs/pkgs/cycle/cycle.el
new file mode 100644
index 000000000000..2f5b252a0d6a
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/cycle/cycle.el
@@ -0,0 +1,194 @@
+;;; cycle.el --- Simple module for working with cycles -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Something like this may already exist, but I'm having trouble finding it, and
+;; I think writing my own is a nice exercise for learning more Elisp.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'dash)
+(require 'struct)
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Wish list
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; - TODO: Provide immutable variant.
+;; - TODO: Replace mutable consumption with immutable variant.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; `current-index' tracks the current index
+;; `xs' is the original list
+(cl-defstruct cycle current-index previous-index xs)
+
+(defun cycle-from-list (xs)
+  "Create a cycle from a list of `XS'."
+  (if (= 0 (length xs))
+      (make-cycle :current-index nil
+                  :previous-index nil
+                  :xs xs)
+    (make-cycle :current-index 0
+                :previous-index nil
+                :xs xs)))
+
+(defun cycle-new (&rest xs)
+  "Create a cycle with XS as the values."
+  (cycle-from-list xs))
+
+(defun cycle-to-list (xs)
+  "Return the list representation of a cycle, XS."
+  (cycle-xs xs))
+
+(defun cycle-previous-focus (cycle)
+  "Return the previously focused entry in CYCLE."
+  (let ((i (cycle-previous-index cycle)))
+    (when i (nth i (cycle-xs cycle)))))
+
+(defun cycle-focus-previous! (xs)
+  "Jump to the item in XS that was most recently focused; return the cycle.
+This will error when previous-index is nil.  This function mutates the
+underlying struct."
+  (let ((i (cycle-previous-index xs)))
+    (if i
+        (progn (cycle-jump! i xs) (cycle-current xs))
+      (error "Cannot focus the previous element since cycle-previous-index is nil"))))
+
+(defun cycle-next! (xs)
+  "Return the next value in `XS' and update `current-index'."
+  (let* ((current-index (cycle-current-index xs))
+         (next-index (cycle--next-index-> 0 (cycle-count xs) current-index)))
+    (struct-set! cycle previous-index current-index xs)
+    (struct-set! cycle current-index next-index xs)
+    (nth next-index (cycle-xs xs))))
+
+(defun cycle-prev! (xs)
+  "Return the previous value in `XS' and update `current-index'."
+  (let* ((current-index (cycle-current-index xs))
+         (next-index (cycle--next-index<- 0 (cycle-count xs) current-index)))
+    (struct-set! cycle previous-index current-index xs)
+    (struct-set! cycle current-index next-index xs)
+    (nth next-index (cycle-xs xs))))
+
+(defun cycle-current (cycle)
+  "Return the current value in `CYCLE'."
+  (nth (cycle-current-index cycle) (cycle-xs cycle)))
+
+(defun cycle-count (cycle)
+  "Return the length of `xs' in `CYCLE'."
+  (length (cycle-xs cycle)))
+
+(defun cycle-jump! (i xs)
+  "Jump to the I index of XS."
+  (let ((current-index (cycle-current-index xs))
+        (next-index (mod i (cycle-count xs))))
+    (struct-set! cycle previous-index current-index xs)
+    (struct-set! cycle current-index next-index xs))
+  xs)
+
+(defun cycle-focus! (p cycle)
+  "Focus the element in CYCLE for which predicate, P, is t."
+  (let ((i (->> cycle
+                cycle-xs
+                (-find-index p))))
+    (if i
+        (cycle-jump! i cycle)
+      (error "No element in cycle matches predicate"))))
+
+(defun cycle-focus-item! (x xs)
+  "Focus item, X, in cycle XS.
+ITEM is the first item in XS that t for `equal'."
+  (cycle-focus! (lambda (y) (equal x y)) xs))
+
+(defun cycle-append! (x xs)
+  "Add X to the left of the focused element in XS.
+If there is no currently focused item, add X to the beginning of XS."
+  (if (cycle-empty? xs)
+      (progn
+        (struct-set! cycle xs (list x) xs)
+        (struct-set! cycle current-index 0 xs)
+        (struct-set! cycle previous-index nil xs))
+    (let ((curr-i (cycle-current-index xs))
+          (prev-i (cycle-previous-index xs)))
+      (if curr-i
+          (progn
+            (struct-set! cycle xs (-insert-at curr-i x (cycle-xs xs)) xs)
+            (when (and prev-i (>= prev-i curr-i))
+              (struct-set! cycle previous-index (1+ prev-i) xs))
+            (when curr-i (struct-set! cycle current-index (1+ curr-i) xs)))
+        (progn
+          (struct-set! cycle xs (cons x (cycle-xs xs)) xs)
+          (when prev-i (struct-set! cycle previous-index (1+ prev-i) xs))))
+      xs)))
+
+(defun cycle-remove! (x xs)
+  "Attempt to remove X from XS.
+
+X is found using `equal'.
+
+If X is the currently focused value, after it's deleted, current-index will be
+  nil.  If X is the previously value, after it's deleted, previous-index will be
+  nil."
+  (let ((curr-i (cycle-current-index xs))
+        (prev-i (cycle-previous-index xs))
+        (rm-i (-elem-index x (cycle-xs xs))))
+    (struct-set! cycle xs (-remove-at rm-i (cycle-xs xs)) xs)
+    (when prev-i
+      (when (> prev-i rm-i) (struct-set! cycle previous-index (1- prev-i) xs))
+      (when (= prev-i rm-i) (struct-set! cycle previous-index nil xs)))
+    (when curr-i
+      (when (> curr-i rm-i) (struct-set! cycle current-index (1- curr-i) xs))
+      (when (= curr-i rm-i) (struct-set! cycle current-index nil xs)))
+    xs))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun cycle-contains? (x xs)
+  "Return t if cycle, XS, has member X."
+  (not (null (-contains? (cycle-xs xs) x))))
+
+(defun cycle-empty? (xs)
+  "Return t if cycle XS has no elements."
+  (= 0 (length (cycle-xs xs))))
+
+(defun cycle-focused? (xs)
+  "Return t if cycle XS has a non-nil value for current-index."
+  (not (null (cycle-current-index xs))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Helper Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun cycle--next-index<- (lo hi x)
+  "Return the next index in a cycle when moving downwards.
+- `LO' is the lower bound.
+- `HI' is the upper bound.
+- `X' is the current index."
+  (if (< (- x 1) lo)
+      (- hi 1)
+    (- x 1)))
+
+(defun cycle--next-index-> (lo hi x)
+  "Return the next index in a cycle when moving upwards.
+- `LO' is the lower bound.
+- `HI' is the upper bound.
+- `X' is the current index."
+  (if (>= (+ 1 x) hi)
+      lo
+    (+ 1 x)))
+
+(provide 'cycle)
+;;; cycle.el ends here
diff --git a/users/wpcarro/emacs/pkgs/cycle/default.nix b/users/wpcarro/emacs/pkgs/cycle/default.nix
new file mode 100644
index 000000000000..7ef3b431ada6
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/cycle/default.nix
@@ -0,0 +1,36 @@
+{ pkgs, depot, ... }:
+
+let
+  cycle = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "cycle";
+        version = "1.0.0";
+        src = ./cycle.el;
+        packageRequires =
+          (with emacsPackages; [
+            dash
+          ]) ++
+          (with depot.users.wpcarro.emacs.pkgs; [
+            struct
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    epkgs.dash
+    cycle
+  ]);
+in
+cycle.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+  passthru.meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush {
+    filter = ":/users/wpcarro/emacs/pkgs/cycle";
+    remote = "git@github.com:wpcarro/cycle.el.git";
+    ref = "refs/heads/canon";
+  };
+})
diff --git a/users/wpcarro/emacs/pkgs/cycle/tests.el b/users/wpcarro/emacs/pkgs/cycle/tests.el
new file mode 100644
index 000000000000..29c0e2a0d582
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/cycle/tests.el
@@ -0,0 +1,79 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'cycle)
+(require 'dash)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(setq xs (cycle-new 1 2 3))
+
+(ert-deftest cycle-initializes-properly ()
+  (should (= 3 (cycle-count xs)))
+  (should (null (cycle-previous-focus xs)))
+  (should (cycle-contains? 1 xs))
+  (should (cycle-contains? 2 xs))
+  (should (cycle-contains? 3 xs)))
+
+(ert-deftest cycle-contains? ()
+  ;; Returns t or nil
+  (should (eq t (cycle-contains? 1 xs)))
+  (should (eq t (cycle-contains? 2 xs)))
+  (should (eq t (cycle-contains? 3 xs)))
+  (should (eq nil (cycle-contains? 4 xs))))
+
+(ert-deftest cycle-empty? ()
+  (should (eq t (cycle-empty? (cycle-new))))
+  (should (eq nil (cycle-empty? xs))))
+
+(ert-deftest cycle-current ()
+  (should (= 1 (cycle-current xs))))
+
+(ert-deftest cycle-next! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (should (= 2 (cycle-next! xs)))))
+
+(ert-deftest cycle-prev! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (cycle-next! xs)
+    (should (= 1 (cycle-prev! xs)))))
+
+(ert-deftest cycle-previous-focus ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (cycle-focus-item! 2 xs)
+    (cycle-next! xs)
+    (should (= 2 (cycle-previous-focus xs)))))
+
+(ert-deftest cycle-jump! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (should (= 1 (->> xs (cycle-jump! 0) cycle-current)))
+    (should (= 2 (->> xs (cycle-jump! 1) cycle-current)))
+    (should (= 3 (->> xs (cycle-jump! 2) cycle-current)))))
+
+(ert-deftest cycle-focus-previous! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (cycle-focus-item! 2 xs)
+    (cycle-next! xs)
+    (should (= 2 (cycle-previous-focus xs)))
+    (should (= 2 (cycle-focus-previous! xs)))))
+
+(ert-deftest cycle-append! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (cycle-focus-item! 2 xs)
+    (cycle-append! 4 xs)
+    (should (equal '(1 4 2 3) (cycle-xs xs)))))
+
+(ert-deftest cycle-remove! ()
+  (let ((xs (cycle-from-list '(1 2 3))))
+    (should (equal '(1 2) (cycle-xs (cycle-remove! 3 xs))))))
+
+(ert-deftest cycle-misc ()
+  (cycle-focus-item! 3 xs)
+  (cycle-focus-item! 2 xs)
+  (cycle-remove! 1 xs)
+  (should (= 2 (cycle-current xs)))
+  (should (= 3 (cycle-previous-focus xs))))
diff --git a/users/wpcarro/emacs/pkgs/fs/default.nix b/users/wpcarro/emacs/pkgs/fs/default.nix
new file mode 100644
index 000000000000..e6afd107e96b
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/fs/default.nix
@@ -0,0 +1,29 @@
+{ pkgs, depot, ... }:
+
+let
+  fs = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "fs";
+        version = "1.0.0";
+        src = ./fs.el;
+        packageRequires =
+          (with emacsPackages; [
+            dash
+            f
+            s
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    fs
+  ]);
+in
+fs.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/fs/fs.el b/users/wpcarro/emacs/pkgs/fs/fs.el
new file mode 100644
index 000000000000..125c1f1007bd
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/fs/fs.el
@@ -0,0 +1,47 @@
+;;; fs.el --- Make working with the filesystem easier -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.1"))
+
+;;; Commentary:
+;; Ergonomic alternatives for working with the filesystem.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'dash)
+(require 'f)
+(require 's)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun fs-ensure-file (path)
+  "Ensure that a file and its directories in `PATH' exist.
+Will error for inputs with a trailing slash."
+  (when (s-ends-with? "/" path)
+    (error (format "Input path has trailing slash: %s" path)))
+  (->> path
+       f-dirname
+       fs-ensure-dir)
+  (f-touch path))
+
+(defun fs-ensure-dir (path)
+  "Ensure that a directory and its ancestor directories in `PATH' exist."
+  (->> path
+       f-split
+       (apply #'f-mkdir)))
+
+(defun fs-ls (dir &optional full-path?)
+  "List the files in `DIR' one-level deep.
+Should behave similarly in spirit to the Unix command, ls.
+If `FULL-PATH?' is set, return the full-path of the files."
+  (-drop 2 (directory-files dir full-path?)))
+
+(provide 'fs)
+;;; fs.el ends here
diff --git a/users/wpcarro/emacs/pkgs/fs/tests.el b/users/wpcarro/emacs/pkgs/fs/tests.el
new file mode 100644
index 000000000000..adef11a607ae
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/fs/tests.el
@@ -0,0 +1,26 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'fs)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest fs-test-ensure-file ()
+  (let ((file "/tmp/file/a/b/c/file.txt"))
+    ;; Ensure this file doesn't exist first to prevent false-positives.
+    (f-delete file t)
+    (fs-ensure-file file)
+    (should (and (f-exists? file)
+                 (f-file? file)))))
+
+(ert-deftest fs-test-ensure-dir ()
+  (let ((dir "/tmp/dir/a/b/c"))
+    ;; Ensure the directory doesn't exist.
+    (f-delete dir t)
+    (fs-ensure-dir dir)
+    (should (and (f-exists? dir)
+                 (f-dir? dir)))))
diff --git a/users/wpcarro/emacs/pkgs/list/README.md b/users/wpcarro/emacs/pkgs/list/README.md
new file mode 100644
index 000000000000..7afa8494fb7a
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/list/README.md
@@ -0,0 +1,19 @@
+# list.el
+
+Functions for working with lists in Elisp.
+
+## Wish List
+
+Here are some additional functions that I'd like to support.
+
+-  **TODO**: delete_at/2
+-  **TODO**: flatten/1
+-  **TODO**: flatten/2
+-  **TODO**: foldl/3
+-  **TODO**: foldr/3
+-  **TODO**: insert_at/3
+-  **TODO**: pop_at/3
+-  **TODO**: replace_at/3
+-  **TODO**: starts_with?/2
+-  **TODO**: update_at/3
+-  **TODO**: zip/1
diff --git a/users/wpcarro/emacs/pkgs/list/default.nix b/users/wpcarro/emacs/pkgs/list/default.nix
new file mode 100644
index 000000000000..1be0b901eb3e
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/list/default.nix
@@ -0,0 +1,26 @@
+{ pkgs, depot, ... }:
+
+let
+  list = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "list";
+        version = "1.0.0";
+        src = ./list.el;
+        packageRequires =
+          (with depot.users.wpcarro.emacs.pkgs; [
+            maybe
+            set
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [ list ]);
+in
+list.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/list/list.el b/users/wpcarro/emacs/pkgs/list/list.el
new file mode 100644
index 000000000000..18be5f0a716c
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/list/list.el
@@ -0,0 +1,219 @@
+;;; list.el --- Functions for working with lists -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Since I prefer having the `list-' namespace, I wrote this module to wrap many
+;; of the functions that are defined in the the global namespace in Elisp.  I
+;; sometimes forget the names of these functions, so it's nice for them to be
+;; organized like this.
+;;
+;; Motivation:
+;; Here are some examples of function names where I prefer more modern
+;; alternatives:
+;; - `car': Return the first element (i.e. "head") of a linked list
+;; - `cdr': Return the tail of a linked list
+
+;; As are most APIs for standard libraries that I write, this is influenced by
+;; Elixir's standard library.
+;;
+;; Similar libraries:
+;; - dash.el: Excellent and widely adopted library for working with lists.
+;; - list-utils.el: Utility library that covers things that dash.el may not
+;;   cover.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'maybe)
+(require 'set)
+(require 'set)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun list-new ()
+  "Return a new, empty list."
+  '())
+
+(defun list-concat (&rest lists)
+  "Joins `LISTS' into on list."
+  (apply #'append lists))
+
+(defun list-duplicate (n x)
+  "Duplicates the given element, X, N times in a list."
+  (list-map (lambda (_) x) (number-sequence 1 n)))
+
+(defun list-join (joint xs)
+  "Join a list of strings, XS, with JOINT."
+  (if (list-empty? xs)
+      ""
+    (list-reduce (list-first xs)
+                 (lambda (x acc)
+                   (format "%s%s%s" acc joint x))
+                 (list-tail xs))))
+
+(defun list-length (xs)
+  "Return the number of elements in `XS'."
+  (length xs))
+
+(defun list-get (i xs)
+  "Return the value in `XS' at `I', or nil."
+  (nth i xs))
+
+(defun list-first (xs &optional default)
+  "Alias for `list-head' for `XS'."
+  (if (list-empty? xs)
+      default
+    (car xs)))
+
+(defun list-last (xs &optional default)
+  "Returns the last element in XS or DEFAULT if empty."
+  (if (list-empty? xs)
+      default
+    (nth (- (length xs) 1) xs)))
+
+(defun list-tail (xs)
+  "Return the tail of `XS'."
+  (cdr xs))
+
+(defun list-reverse (xs)
+  "Reverses `XS'."
+  (reverse xs))
+
+(defun list-cons (x xs)
+  "Add `X' to the head of `XS'."
+  (cons x xs))
+
+(defun list-delete (x xs)
+  "Deletes the given element, X, from XS.
+Returns a new list without X. If X occurs more than once, only the first
+  occurrence is removed."
+  (let ((deleted? nil))
+    (list-reject (lambda (y)
+                   (if deleted? nil
+                     (when (equal x y)
+                       (setq deleted? t) t)))
+                 xs)))
+
+(defun list-filter (p xs)
+  "Return a subset of XS where predicate P returned t."
+  (list--assert-instance xs)
+  (seq-filter p xs))
+
+(defun list-map (f xs)
+  "Call `F' on each element of `XS'."
+  (list--assert-instance xs)
+  (seq-map f xs))
+
+(defun list-reduce (acc f xs)
+  "Return over `XS' calling `F' on an element in `XS'and `ACC'."
+  (list--assert-instance xs)
+  (seq-reduce (lambda (acc x) (funcall f x acc)) xs acc))
+
+(defun list-map-indexed (f xs)
+  "Call `F' on each element of `XS' along with its index."
+  (list-reverse
+   (cdr
+    (list-reduce '(0 . nil)
+                 (lambda (x acc)
+                   (let ((i (car acc))
+                         (result (cdr acc)))
+                     `(,(+ 1 i) . ,(cons (funcall f x i) result))))
+                 xs))))
+
+(defun list-reject (p xs)
+  "Return a subset of XS where predicate of P return nil."
+  (list-filter (lambda (x) (not (funcall p x))) xs))
+
+(defun list-find (p xs)
+  "Return the first x in XS that passes P or nil."
+  (list--assert-instance xs)
+  (seq-find p xs))
+
+(defun list-dedupe-adjacent (xs)
+  "Return XS without adjacent duplicates."
+  (list-reverse
+   (list-reduce (list (list-first xs))
+                (lambda (x acc)
+                  (if (equal x (list-first acc))
+                      acc
+                    (list-cons x acc)))
+                xs)))
+
+(defun list-chunk (n xs)
+  "Chunk XS into lists of size N."
+  (if (> n (length xs))
+      (list xs)
+    (let* ((xs (list-reduce '(:curr () :result ())
+                            (lambda (x acc)
+                              (let ((curr (plist-get acc :curr))
+                                    (result (plist-get acc :result)))
+                                (if (= (- n 1) (length curr))
+                                    `(:curr () :result ,(list-cons (list-reverse (list-cons x curr)) result))
+                                  `(:curr ,(list-cons x curr) :result
+                                          ,result)))) xs))
+           (curr (plist-get xs :curr))
+           (result (plist-get xs :result)))
+      (list-reverse (if curr (list-cons curr result) result)))))
+
+(defun list-wrap (xs)
+  "Wraps XS in a list if it is not a list already."
+  (if (list-instance? xs)
+      xs
+    (list xs)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun list-instance? (xs)
+  "Return t if `XS' is a list.
+Be leery of using this with things like alists.  Many data structures in Elisp
+  are implemented using linked lists."
+  (listp xs))
+
+(defun list-empty? (xs)
+  "Return t if XS are empty."
+  (= 0 (list-length xs)))
+
+(defun list-all? (p xs)
+  "Return t if all `XS' pass the predicate, `P'."
+  (if (list-empty? xs)
+      t
+    (and (maybe-some? (funcall p (car xs)))
+         (list-all? p (cdr xs)))))
+
+(defun list-any? (p xs)
+  "Return t if any `XS' pass the predicate, `P'."
+  (if (list-empty? xs)
+      nil
+    (or (maybe-some? (funcall p (car xs)))
+        (list-any? p (cdr xs)))))
+
+(defun list-contains? (x xs)
+  "Return t if X is in XS using `equal'."
+  (list--assert-instance xs)
+  (maybe-some? (seq-contains-p xs x)))
+
+(defun list-xs-distinct-by? (f xs)
+  "Return t if all elements in XS are distinct after applying F to each."
+  (= (length xs)
+     (set-count (set-from-list (list-map f xs)))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Helpers
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun list--assert-instance (xs)
+  (unless (list-instance? xs)
+    (error (format "Assertion failed: argument is not a list: %s" xs))))
+
+(provide 'list)
+;;; list.el ends here
diff --git a/users/wpcarro/emacs/pkgs/list/tests.el b/users/wpcarro/emacs/pkgs/list/tests.el
new file mode 100644
index 000000000000..4b4579688331
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/list/tests.el
@@ -0,0 +1,107 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'list)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(setq xs '(1 2 3 4 5))
+
+(ert-deftest list-length ()
+  (should (= 0 (list-length '())))
+  (should (= 5 (list-length xs))))
+
+(ert-deftest list-reduce ()
+  (should (= 16 (list-reduce 1 (lambda (x acc) (+ x acc)) xs))))
+
+(ert-deftest list-map ()
+  (should
+   (equal '(2 4 6 8 10)
+          (list-map (lambda (x) (* x 2)) xs))))
+
+(ert-deftest list-xs-distinct-by? ()
+  (should
+   (equal t (list-xs-distinct-by?
+             (lambda (x) (plist-get x :kbd))
+             '((:kbd "C-a" :name "foo")
+               (:kbd "C-b" :name "foo"))))))
+
+(ert-deftest list-dedupe-adjacent ()
+  (should (equal '(1 2 3 4 3 5)
+                 (list-dedupe-adjacent '(1 1 1 2 2 3 4 4 3 5 5)))))
+
+(ert-deftest list-contains? ()
+  ;; Assert returns t or nil
+  (should (equal t (list-contains? 1 xs)))
+  (should (equal nil (list-contains? 100 xs))))
+
+(ert-deftest list-join ()
+  (should (equal "foo-bar-baz"
+                 (list-join "-" '("foo" "bar" "baz")))))
+
+(ert-deftest list-chunk ()
+  (should (equal '((1 2 3 4 5 6))
+                 (list-chunk 7 '(1 2 3 4 5 6))))
+  (should (equal '((1) (2) (3) (4) (5) (6))
+                 (list-chunk 1 '(1 2 3 4 5 6))))
+  (should (equal '((1 2 3) (4 5 6))
+                 (list-chunk 3 '(1 2 3 4 5 6))))
+  (should (equal '((1 2) (3 4) (5 6))
+                 (list-chunk 2 '(1 2 3 4 5 6)))))
+
+(ert-deftest list-find ()
+  (should (equal 2 (list-find (lambda (x) (= 2 x)) '(1 2 3 4)))))
+
+(ert-deftest list-all? ()
+  (should (equal t (list-all? (lambda (x) (= 2 x)) nil)))
+  (should (null (list-all? (lambda (x) (= 2 x)) '(1 2 3))))
+  (should (equal t (list-all? (lambda (x) (= 2 x)) '(2 2 2 2)))))
+
+(ert-deftest list-any? ()
+  (should (null (list-any? (lambda (x) (= 2 x)) nil)))
+  (should (equal t (list-any? (lambda (x) (= 2 x)) '(1 2 3))))
+  (should (null (list-any? (lambda (x) (= 4 x)) '(1 2 3)))))
+
+(ert-deftest list-duplicate ()
+  (should (equal '() (list-duplicate 0 "hello")))
+  (should (equal '("hi") (list-duplicate 1 "hi")))
+  (should (equal '("bye" "bye") (list-duplicate 2 "bye")))
+  (should (equal '((1 2) (1 2) (1 2)) (list-duplicate 3 '(1 2)))))
+
+(ert-deftest list-first ()
+  (should (null (list-first '())))
+  (should (equal 1 (list-first '() 1)))
+  (should (equal 1 (list-first '(1))))
+  (should (equal 1 (list-first '(1) 2)))
+  (should (equal 1 (list-first '(1 2 3)))))
+
+(ert-deftest list-last ()
+  (should (null (list-last '())))
+  (should (equal 1 (list-last '() 1)))
+  (should (equal 1 (list-last '(1))))
+  (should (equal 1 (list-last '(1) 2)))
+  (should (equal 3 (list-last '(1 2 3)))))
+
+(ert-deftest list-wrap ()
+  (should (equal '("hello") (list-wrap "hello")))
+  (should (equal '(1 2 3) (list-wrap '(1 2 3))))
+  (should (equal '() (list-wrap nil))))
+
+(ert-deftest list-delete ()
+  (should (equal '(b c) (list-delete 'a '(a b c))))
+  (should (equal '(a b c) (list-delete 'd '(a b c))))
+  (should (equal '(a b c) (list-delete 'b '(a b b c))))
+  (should (equal '() (list-delete 'b '()))))
+
+(ert-deftest list-concat ()
+  (should (equal '(1 2 3 4 5) (list-concat '(1) '(2 3) '(4 5))))
+  (should (equal '(1 2 3) (list-concat '() '(1 2 3)))))
+
+;; TODO(wpcarro): Supoprt this.
+;; (ert-deftest list-zip ()
+;;   (should (equal '((1 3 5) (2 4 6)) (list-zip '(1 2) '(3 4) '(5 6))))
+;;   (should (equal '((1 3 5)) (list-zip '(1 2) '(3) '(5 6)))))
diff --git a/users/wpcarro/emacs/pkgs/macros/default.nix b/users/wpcarro/emacs/pkgs/macros/default.nix
new file mode 100644
index 000000000000..d2811ed39fc6
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/macros/default.nix
@@ -0,0 +1,10 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "macros";
+    version = "1.0.0";
+    src = ./macros.el;
+  })
+{ }
diff --git a/users/wpcarro/emacs/pkgs/macros/macros.el b/users/wpcarro/emacs/pkgs/macros/macros.el
new file mode 100644
index 000000000000..3642686eeb4b
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/macros/macros.el
@@ -0,0 +1,45 @@
+;;; macros.el --- Helpful variables for making my ELisp life more enjoyable -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; This file contains helpful variables that I use in my ELisp development.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defmacro macros-enable (mode)
+  "Helper for enabling `MODE'.
+Useful in `add-hook' calls.  Some modes, like `linum-mode' need to be called as
+`(linum-mode 1)', so `(add-hook mode #'linum-mode)' won't work."
+  `#'(lambda nil (,mode 1)))
+
+(defmacro macros-disable (mode)
+  "Helper for disabling `MODE'.
+Useful in `add-hook' calls."
+  `#'(lambda nil (,mode -1)))
+
+(defmacro macros-add-hook-before-save (mode f)
+  "Register a hook, `F', for a mode, `MODE' more conveniently.
+Usage: (macros-add-hook-before-save 'reason-mode-hook #'refmt-before-save)"
+  `(add-hook ,mode
+             (lambda ()
+               (add-hook 'before-save-hook ,f))))
+
+(defmacro macros-comment (&rest _)
+  "Empty comment s-expresion where `BODY' is ignored."
+  `nil)
+
+(defmacro macros-support-file-extension (ext mode)
+  "Register MODE to automatically load with files ending with EXT extension.
+Usage: (macros-support-file-extension \"pb\" protobuf-mode)"
+  (let ((extension (format "\\.%s\\'" ext)))
+    `(add-to-list 'auto-mode-alist '(,extension . ,mode))))
+
+(provide 'macros)
+;;; macros.el ends here
diff --git a/users/wpcarro/emacs/pkgs/math/default.nix b/users/wpcarro/emacs/pkgs/math/default.nix
new file mode 100644
index 000000000000..9167d61d4edc
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/math/default.nix
@@ -0,0 +1,30 @@
+{ pkgs, depot, ... }:
+
+let
+  math = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "math";
+        version = "1.0.0";
+        src = ./math.el;
+        packageRequires =
+          (with emacsPackages; [
+            dash
+          ]) ++
+          (with depot.users.wpcarro.emacs.pkgs; [
+            maybe
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    math
+  ]);
+in
+math.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/math/math.el b/users/wpcarro/emacs/pkgs/math/math.el
new file mode 100644
index 000000000000..dbc527928a30
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/math/math.el
@@ -0,0 +1,63 @@
+;;; math.el --- Math stuffs -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Containing some useful mathematical functions.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'dash)
+(require 'maybe)
+(require 'cl-lib)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Constants
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defconst math-pi pi
+  "The number pi.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; TODO: Support all three arguments.
+;; Int -> Int -> Int -> Boolean
+(cl-defun math-triangle-of-power (&key base power result)
+  (cond
+   ((-all? #'maybe-some? (list base power result))
+    (error "All three arguments should not be set"))
+   ((-all? #'maybe-some? (list power result))
+    (message "power and result"))
+   ((-all? #'maybe-some? (list base result))
+    (log result base))
+   ((-all? #'maybe-some? (list base power))
+    (expt base power))
+   (t
+    (error "Two of the three arguments must be set"))))
+
+(defun math-mod (x y)
+  "Return X mod Y."
+  (mod x y))
+
+(defun math-exp (x y)
+  "Return X raised to the Y."
+  (expt x y))
+
+(defun math-round (x)
+  "Round X to nearest ones digit."
+  (round x))
+
+(defun math-floor (x)
+  "Floor value X."
+  (floor x))
+
+(provide 'math)
+;;; math.el ends here
diff --git a/users/wpcarro/emacs/pkgs/math/tests.el b/users/wpcarro/emacs/pkgs/math/tests.el
new file mode 100644
index 000000000000..ef3430c9131b
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/math/tests.el
@@ -0,0 +1,25 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'math)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest math-mod ()
+  (should (= 0 (math-mod 9 3)))
+  (should (= 4 (math-mod 9 5))))
+
+(ert-deftest math-exp ()
+  (should (= 9 (math-exp 3 2)))
+  (should (= 8 (math-exp 2 3))))
+
+(ert-deftest math-round ()
+  (should (= 10 (math-round 9.5)))
+  (should (= 9 (math-round 9.45))))
+
+(ert-deftest math-floor ()
+  (should (= 9 (math-floor 9.5))))
diff --git a/users/wpcarro/emacs/pkgs/maybe/default.nix b/users/wpcarro/emacs/pkgs/maybe/default.nix
new file mode 100644
index 000000000000..68e058b42b19
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/maybe/default.nix
@@ -0,0 +1,24 @@
+{ pkgs, depot, ... }:
+
+let
+  maybe = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "maybe";
+        version = "1.0.0";
+        src = ./maybe.el;
+        packageRequires = [ ];
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    maybe
+  ]);
+in
+maybe.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/maybe/maybe.el b/users/wpcarro/emacs/pkgs/maybe/maybe.el
new file mode 100644
index 000000000000..581568d8ccba
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/maybe/maybe.el
@@ -0,0 +1,54 @@
+;;; maybe.el --- Library for dealing with nil values -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Inspired by Elm's Maybe library.
+;;
+;; For now, a Nothing value will be defined exclusively as a nil value.  I'm
+;; uninterested in supported falsiness in this module even at risk of going
+;; against the LISP grain.
+;;
+;; I'm avoiding introducing a struct to handle the creation of Just and Nothing
+;; variants of Maybe.  Perhaps this is a mistake in which case this file would
+;; be more aptly named nil.el.  I may change that.  Because of this limitation,
+;; functions in Elm's Maybe library like andThen, which is the monadic bind for
+;; the Maybe type, doesn't have a home here since we cannot compose multiple
+;; Nothing or Just values without a struct or some other construct.
+;;
+;; Possible names for the variants of a Maybe.
+;; None    | Some
+;; Nothing | Something
+;; None    | Just
+;; Nil     | Set
+;;
+;; NOTE: In Elisp, values like '() (i.e. the empty list) are aliases for nil.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun maybe-nil? (x)
+  "Return t if X is nil."
+  (null x))
+
+(defun maybe-some? (x)
+  "Return t when X is non-nil."
+  (not (maybe-nil? x)))
+
+(defun maybe-default (default x)
+  "Return DEFAULT when X is nil."
+  (if (maybe-nil? x) default x))
+
+(defun maybe-map (f x)
+  "Apply F to X if X is not nil."
+  (if (maybe-some? x)
+      (funcall f x)
+    x))
+
+(provide 'maybe)
+;;; maybe.el ends here
diff --git a/users/wpcarro/emacs/pkgs/maybe/tests.el b/users/wpcarro/emacs/pkgs/maybe/tests.el
new file mode 100644
index 000000000000..c0463cc65a53
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/maybe/tests.el
@@ -0,0 +1,25 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'maybe)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest maybe-nil? ()
+  (should (maybe-nil? nil))
+  (should (not (maybe-nil? t))))
+
+(ert-deftest maybe-some? ()
+  (should (maybe-some? '(1 2 3)))
+  (should (not (maybe-some? nil))))
+
+(ert-deftest maybe-default ()
+  (should (string= "some" (maybe-default "some" nil)))
+  (should (= 10 (maybe-default 1 10))))
+
+(ert-deftest maybe-map ()
+  (should (eq nil (maybe-map (lambda (x) (* x 2)) nil)))
+  (should (= 4 (maybe-map (lambda (x) (* x 2)) 2))))
diff --git a/users/wpcarro/emacs/pkgs/passage/README.md b/users/wpcarro/emacs/pkgs/passage/README.md
new file mode 100644
index 000000000000..51f7bd6efda4
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/passage/README.md
@@ -0,0 +1,12 @@
+# passage.el
+
+Emacs support for `passage`.
+
+## Alternative Packages
+
+If you're looking for more feature-complete, configurable alternatives,
+check-out the following packages:
+
+- `ivy-pass.el`
+- `password-store.el`
+- `pass.el`
diff --git a/users/wpcarro/emacs/pkgs/passage/default.nix b/users/wpcarro/emacs/pkgs/passage/default.nix
new file mode 100644
index 000000000000..ac87f193b4e2
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/passage/default.nix
@@ -0,0 +1,12 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "passage";
+    version = "1.0.0";
+    src = ./passage.el;
+    packageRequires = (with emacsPackages; [ dash f s ]);
+  }
+  )
+{ }
diff --git a/users/wpcarro/emacs/pkgs/passage/passage.el b/users/wpcarro/emacs/pkgs/passage/passage.el
new file mode 100644
index 000000000000..4a43920e0bed
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/passage/passage.el
@@ -0,0 +1,65 @@
+;;; passage.el --- Emacs passage support -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022-2023 William Carroll <wpcarro@gmail.com>
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 1.0.0
+
+;; This file is not part of GNU Emacs.
+
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This package provides functions for working with passage.
+
+;;; Code:
+
+(require 'dash)
+(require 'f)
+(require 's)
+
+(defgroup passage nil
+  "Customization options for `passage'."
+  :prefix "passage-"
+  :group 'vterm)
+
+(defcustom passage-store
+  "~/.passage/store"
+  "Path to the passage store directory."
+  :type 'string
+  :group 'passage)
+
+(defcustom passage-executable
+  (or (executable-find "passage")
+      "/nix/store/jgffkfdiiwiqa4zqpxn3691mx9xc6axa-passage-unstable-2022-05-01/bin/passage")
+  "Path to passage executable."
+  :type 'string
+  :group 'passage)
+
+(defun passage-select ()
+  "Select an entry and copy its password to the kill ring."
+  (interactive)
+  (let ((key (completing-read "Copy password of entry: "
+                              (-map (lambda (x)
+                                      (f-no-ext (f-relative x passage-store)))
+                                    (f-files passage-store nil t)))))
+    (kill-new
+     (s-trim-right
+      (shell-command-to-string
+       (format "%s show %s | head -1" passage-executable key))))
+    (message "[passage.el] Copied \"%s\"!" key)))
+
+(provide 'passage)
+;;; passage.el ends here
diff --git a/users/wpcarro/emacs/pkgs/set/default.nix b/users/wpcarro/emacs/pkgs/set/default.nix
new file mode 100644
index 000000000000..319ba9274423
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/set/default.nix
@@ -0,0 +1,32 @@
+{ pkgs, depot, ... }:
+
+let
+  set = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "set";
+        version = "1.0.0";
+        src = ./set.el;
+        packageRequires =
+          (with emacsPackages; [
+            dash
+            ht
+          ]) ++
+          (with depot.users.wpcarro.emacs.pkgs; [
+            struct
+          ]);
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    epkgs.dash
+    set
+  ]);
+in
+set.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/set/set.el b/users/wpcarro/emacs/pkgs/set/set.el
new file mode 100644
index 000000000000..2d6e14917a45
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/set/set.el
@@ -0,0 +1,116 @@
+;;; set.el --- Working with mathematical sets -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; The set data structure is a collection that deduplicates its elements.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'cl-lib)
+(require 'dash)
+(require 'ht) ;; friendlier API for hash-tables
+(require 'struct)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Wish List
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; - TODO: Support enum protocol for set.
+;; - TODO: Prefer a different hash-table library that doesn't rely on mutative
+;;   code.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct set xs)
+
+(defun set-from-list (xs)
+  "Create a new set from the list XS."
+  (make-set :xs (->> xs
+                     (-map (lambda (x) (cons x nil)))
+                     ht-from-alist)))
+
+(defun set-new (&rest args)
+  "Create a new set from ARGS."
+  (set-from-list args))
+
+(defun set-to-list (xs)
+  "Map set XS into a list."
+  (->> xs
+       set-xs
+       ht-keys))
+
+(defun set-add (x xs)
+  "Add X to set XS."
+  (struct-update set
+                 xs
+                 (lambda (table)
+                   (let ((table-copy (ht-copy table)))
+                     (ht-set table-copy x nil)
+                     table-copy))
+                 xs))
+
+;; TODO: Ensure all `*/reduce' functions share the same API.
+(defun set-reduce (acc f xs)
+  "Return a new set by calling F on each element of XS and ACC."
+  (->> xs
+       set-to-list
+       (-reduce-from (lambda (acc x) (funcall f x acc)) acc)))
+
+(defun set-intersection (a b)
+  "Return the set intersection between A and B."
+  (set-reduce (set-new)
+              (lambda (x acc)
+                (if (set-contains? x b)
+                    (set-add x acc)
+                  acc))
+              a))
+
+(defun set-count (xs)
+  "Return the number of elements in XS."
+  (->> xs
+       set-xs
+       ht-size))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun set-empty? (xs)
+  "Return t if XS has no elements in it."
+  (= 0 (set-count xs)))
+
+(defun set-contains? (x xs)
+  "Return t if set XS has X."
+  (ht-contains? (set-xs xs) x))
+
+;; TODO: Prefer using `ht.el' functions for this.
+(defun set-equal? (a b)
+  "Return t if A and B share the name members."
+  (ht-equal? (set-xs a)
+             (set-xs b)))
+
+(defun set-distinct? (a b)
+  "Return t if A and B have no shared members."
+  (set-empty? (set-intersection a b)))
+
+(defun set-superset? (a b)
+  "Return t if A has all of the members of B."
+  (->> b
+       set-to-list
+       (-all? (lambda (x) (set-contains? x a)))))
+
+(defun set-subset? (a b)
+  "Return t if each member of set A is present in set B."
+  (set-superset? b a))
+
+(provide 'set)
+;;; set.el ends here
diff --git a/users/wpcarro/emacs/pkgs/set/tests.el b/users/wpcarro/emacs/pkgs/set/tests.el
new file mode 100644
index 000000000000..7f5c2ae3ffd9
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/set/tests.el
@@ -0,0 +1,69 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'dash)
+(require 'set)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest set-from-list ()
+  (should (equal '(1 2 3)
+                 (->> '(1 2 3 1 2 3)
+                      set-from-list
+                      set-to-list))))
+
+(ert-deftest set-distinct? ()
+  (should (set-distinct? (set-new 'one 'two 'three)
+                         (set-new 'a 'b 'c)))
+  (should (not
+           (set-distinct? (set-new 1 2 3)
+                          (set-new 3 4 5))))
+  (should (not
+           (set-distinct? (set-new 1 2 3)
+                          (set-new 1 2 3)))))
+
+(ert-deftest set-equal? ()
+  (should (not (set-equal? (set-new 'a 'b 'c)
+                           (set-new 'x 'y 'z))))
+  (should (not (set-equal? (set-new 'a 'b 'c)
+                           (set-new 'a 'b))))
+  (should (set-equal? (set-new 'a 'b 'c)
+                      (set-new 'a 'b 'c))))
+
+(ert-deftest set-intersection ()
+  (should (set-equal? (set-new 2 3)
+                      (set-intersection (set-new 1 2 3)
+                                        (set-new 2 3 4)))))
+
+(ert-deftest set-to/from-list ()
+  (should (equal '(1 2 3)
+                 (->> '(1 1 2 2 3 3)
+                      set-from-list
+                      set-to-list))))
+
+(ert-deftest set-subset? ()
+  (should (not (set-subset? (set-new "black" "grey")
+                            (set-new "red" "green" "blue"))))
+  (should (set-subset? (set-new "red")
+                       (set-new "red" "green" "blue"))))
+
+(ert-deftest set-superset? ()
+  (let ((primary-colors (set-new "red" "green" "blue")))
+    (should (not (set-superset? primary-colors
+                                (set-new "black" "grey"))))
+    (should (set-superset? primary-colors
+                           (set-new "red" "green" "blue")))
+    (should (set-superset? primary-colors
+                           (set-new "red" "blue")))))
+
+(ert-deftest set-empty? ()
+  (should (set-empty? (set-new)))
+  (should (not (set-empty? (set-new 1 2 3)))))
+
+(ert-deftest set-count ()
+  (should (= 0 (set-count (set-new))))
+  (should (= 2 (set-count (set-new 1 1 2 2)))))
diff --git a/users/wpcarro/emacs/pkgs/string/default.nix b/users/wpcarro/emacs/pkgs/string/default.nix
new file mode 100644
index 000000000000..406cccdfcb58
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/string/default.nix
@@ -0,0 +1,27 @@
+{ pkgs, depot, ... }:
+
+let
+  string = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "string";
+        version = "1.0.0";
+        src = ./string.el;
+        packageRequires = [
+          emacsPackages.dash
+          emacsPackages.s
+        ];
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    string
+  ]);
+in
+string.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/string/string.el b/users/wpcarro/emacs/pkgs/string/string.el
new file mode 100644
index 000000000000..30da1805e83f
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/string/string.el
@@ -0,0 +1,98 @@
+;;; string.el --- Library for working with strings -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Library for working with strings.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 's)
+(require 'dash)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun string-split (y x)
+  "Map string X into a list of strings that were separated by Y."
+  (s-split y x))
+
+(defun string-format (x &rest args)
+  "Format template string X with ARGS."
+  (apply #'format (cons x args)))
+
+(defun string-concat (&rest strings)
+  "Joins `STRINGS' into onto string."
+  (apply #'s-concat strings))
+
+(defun string-to-symbol (string)
+  "Maps `STRING' to a symbol."
+  (intern string))
+
+(defun string-from-symbol (symbol)
+  "Maps `SYMBOL' into a string."
+  (symbol-name symbol))
+
+(defun string-prepend (prefix x)
+  "Prepend `PREFIX' onto `X'."
+  (s-concat prefix x))
+
+(defun string-append (postfix x)
+  "Appen `POSTFIX' onto `X'."
+  (s-concat x postfix))
+
+(defun string-surround (s x)
+  "Surrounds `X' one each side with `S'."
+  (->> x
+       (string-prepend s)
+       (string-append s)))
+
+;; TODO: Define a macro for defining a function and a test.
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Casing
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun string-caps->kebab (x)
+  "Change the casing of `X' from CAP_CASE to kebab-case."
+  (->> x
+       s-downcase
+       (s-replace "_" "-")))
+
+(defun string-kebab->caps (x)
+  "Change the casing of X from CAP_CASE to kebab-case."
+  (->> x
+       s-upcase
+       (s-replace "-" "_")))
+
+(defun string-lower->caps (x)
+  "Change the casing of X from lowercase to CAPS_CASE."
+  (->> x
+       s-upcase
+       (s-replace " " "_")))
+
+(defun string-lower->kebab (x)
+  "Change the casing of `X' from lowercase to kebab-case."
+  (s-replace " " "-" x))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun string-instance? (x)
+  "Return t if X is a string."
+  (stringp x))
+
+(defun string-contains? (c x)
+  "Return t if X is in C."
+  (s-contains? c x))
+
+(provide 'string)
+;;; string.el ends here
diff --git a/users/wpcarro/emacs/pkgs/string/tests.el b/users/wpcarro/emacs/pkgs/string/tests.el
new file mode 100644
index 000000000000..351e305466d3
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/string/tests.el
@@ -0,0 +1,22 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'string)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest string-caps->kebab ()
+  (should (string= "foo-bar-baz" (string-caps->kebab "FOO_BAR_BAZ"))))
+
+(ert-deftest string-kebab->caps ()
+  (should (string= "FOO_BAR_BAZ" (string-kebab->caps "foo-bar-baz"))))
+
+(ert-deftest string-lower->caps ()
+  (should (string= "FOO_BAR_BAZ" (string-lower->caps "foo bar baz"))))
+
+(ert-deftest string-lower->kebab ()
+  (should (string= "foo-bar-baz" (string-lower->kebab "foo bar baz"))))
diff --git a/users/wpcarro/emacs/pkgs/struct/README.md b/users/wpcarro/emacs/pkgs/struct/README.md
new file mode 100644
index 000000000000..34dac6614cd1
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/struct/README.md
@@ -0,0 +1,6 @@
+# struct.el
+
+[![Build status](https://badge.buildkite.com/016bff4b8ae2704a3bbbb0a250784e6692007c582983b6dea7.svg?branch=refs/heads/canon)](https://buildkite.com/tvl/depot)
+
+Provides new macros exposing immutable and mutable interfaces for working with
+structs in Elisp.
diff --git a/users/wpcarro/emacs/pkgs/struct/default.nix b/users/wpcarro/emacs/pkgs/struct/default.nix
new file mode 100644
index 000000000000..558ebd0a3d20
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/struct/default.nix
@@ -0,0 +1,29 @@
+{ pkgs, depot, ... }:
+
+let
+  struct = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "struct";
+        version = "1.0.0";
+        src = ./struct.el;
+        packageRequires = [ ];
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    struct
+  ]);
+in
+struct.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+  passthru.meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush {
+    filter = ":/users/wpcarro/emacs/pkgs/struct";
+    remote = "git@github.com:wpcarro/struct.el.git";
+    ref = "refs/heads/canon";
+  };
+})
diff --git a/users/wpcarro/emacs/pkgs/struct/struct.el b/users/wpcarro/emacs/pkgs/struct/struct.el
new file mode 100644
index 000000000000..5d6572bf6dde
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/struct/struct.el
@@ -0,0 +1,65 @@
+;;; struct.el --- Helpers for working with structs -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 1.0.0
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; Provides new macros for working with structs.  Also provides adapter
+;; interfaces to existing struct macros, that should have more intuitive
+;; interfaces.
+;;
+;; Sometimes `setf' just isn't enough.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defmacro struct-update (type field f xs)
+  "Apply F to FIELD in XS, which is a struct of TYPE.
+This is immutable."
+  (let ((copier (struct--copier-for type))
+        (accessor (struct--accessor-for type field)))
+    `(let ((copy (,copier ,xs)))
+       (setf (,accessor copy) (funcall ,f (,accessor copy)))
+       copy)))
+
+(defmacro struct-update! (type field f xs)
+  "Mutably apply F to FIELD in XS."
+  (let ((accessor (struct--accessor-for type field)))
+    `(progn
+       (setf (,accessor ,xs) (funcall ,f (,accessor ,xs)))
+       ,xs)))
+
+(defmacro struct-set (type field x xs)
+  "Immutably set FIELD in XS (struct TYPE) to X."
+  (let ((copier (struct--copier-for type))
+        (accessor (struct--accessor-for type field)))
+    `(let ((copy (,copier ,xs)))
+       (setf (,accessor copy) ,x)
+       copy)))
+
+(defmacro struct-set! (type field x xs)
+  "Set FIELD in XS (struct TYPE) to X mutably.
+This is an adapter interface to `setf'."
+  (let ((accessor (struct--accessor-for type field)))
+    `(progn
+       (setf (,accessor ,xs) ,x)
+       ,xs)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Helper Functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun struct--copier-for (type)
+  (intern (format "copy-%s" (symbol-name type))))
+
+(defun struct--accessor-for (type field)
+  (intern (format "%s-%s"
+                  (symbol-name type)
+                  (symbol-name field))))
+
+(provide 'struct)
+;;; struct.el ends here
diff --git a/users/wpcarro/emacs/pkgs/struct/tests.el b/users/wpcarro/emacs/pkgs/struct/tests.el
new file mode 100644
index 000000000000..a7ddb52c46d6
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/struct/tests.el
@@ -0,0 +1,44 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'struct)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct dummy name age)
+
+(ert-deftest struct-update ()
+  (let* ((test (make-dummy :name "Roofus" :age 19))
+         (result (struct-update dummy name #'upcase test)))
+    ;; test
+    (should (string= "Roofus" (dummy-name test)))
+    (should (= 19 (dummy-age test)))
+    ;; result
+    (should (string= "ROOFUS" (dummy-name result)))
+    (should (= 19 (dummy-age result)))))
+
+(ert-deftest struct-update! ()
+  (let ((test (make-dummy :name "Roofus" :age 19)))
+    (struct-update! dummy name #'upcase test)
+    (should (string= "ROOFUS" (dummy-name test)))
+    (should (= 19 (dummy-age test)))))
+
+(ert-deftest struct-set ()
+  (let* ((test (make-dummy :name "Roofus" :age 19))
+         (result (struct-set dummy name "Shoofus" test)))
+    ;; test
+    (should (string= "Roofus" (dummy-name test)))
+    (should (= 19 (dummy-age test)))
+    ;; result
+    (should (string= "Shoofus" (dummy-name result)))
+    (should (= 19 (dummy-age result)))))
+
+(ert-deftest struct-set! ()
+  (let ((test (make-dummy :name "Roofus" :age 19)))
+    (struct-set! dummy name "Doofus" test)
+    (should (string= "Doofus" (dummy-name test)))
+    (should (= 19 (dummy-age test)))))
diff --git a/users/wpcarro/emacs/pkgs/symbol/default.nix b/users/wpcarro/emacs/pkgs/symbol/default.nix
new file mode 100644
index 000000000000..9334697e3203
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/symbol/default.nix
@@ -0,0 +1,24 @@
+{ pkgs, depot, ... }:
+
+let
+  symbol = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "symbol";
+        version = "1.0.0";
+        src = ./symbol.el;
+        packageRequires = [ ];
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [
+    symbol
+  ]);
+in
+symbol.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/symbol/symbol.el b/users/wpcarro/emacs/pkgs/symbol/symbol.el
new file mode 100644
index 000000000000..4b16351831c9
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/symbol/symbol.el
@@ -0,0 +1,38 @@
+;;; symbol.el --- Library for working with symbols -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; Library for working with symbols.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun symbol-to-string (symbol)
+  "Map `SYMBOL' into a string."
+  (symbol-name symbol))
+
+(defun symbol-from-string (string)
+  "Map `STRING' into a symbol."
+  (intern string))
+
+(defun symbol-as-string (f x)
+  "Treat the symbol, X, as a string while applying F to it.
+Coerce back to a symbol on the way out."
+  (symbol-from-string (funcall f (symbol-to-string x))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun symbol-instance? (x)
+  "Return t if X is a symbol."
+  (symbolp x))
+
+(provide 'symbol)
+;;; symbol.el ends here
diff --git a/users/wpcarro/emacs/pkgs/symbol/tests.el b/users/wpcarro/emacs/pkgs/symbol/tests.el
new file mode 100644
index 000000000000..b10362b162c7
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/symbol/tests.el
@@ -0,0 +1,22 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'symbol)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest symbol-to-string ()
+  (should (string= "foo" (symbol-to-string 'foo))))
+
+(ert-deftest symbol-from-string ()
+  (should (eq 'foo (symbol-from-string "foo"))))
+
+(ert-deftest symbol-as-string ()
+  (should (eq 'foo-hook
+              (symbol-as-string
+               (lambda (x) (format "%s-hook" x))
+               'foo))))
diff --git a/users/wpcarro/emacs/pkgs/theme/default.nix b/users/wpcarro/emacs/pkgs/theme/default.nix
new file mode 100644
index 000000000000..aea639436961
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/theme/default.nix
@@ -0,0 +1,14 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "theme";
+    version = "1.0.0";
+    src = ./theme.el;
+    packageRequires =
+      (with depot.users.wpcarro.emacs.pkgs; [
+        cycle
+      ]);
+  })
+{ }
diff --git a/users/wpcarro/emacs/pkgs/theme/theme.el b/users/wpcarro/emacs/pkgs/theme/theme.el
new file mode 100644
index 000000000000..32f2c89a4d0b
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/theme/theme.el
@@ -0,0 +1,78 @@
+;;; theme.el --- Colors and stuff -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;;
+;; Cycle through a whitelist of themes.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'cycle)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defgroup theme nil
+  "Customization options for `theme'."
+  :group 'theme)
+
+(defcustom theme-whitelist
+  (cycle-from-list (custom-available-themes))
+  "The whitelist of themes through which to cycle."
+  :type '(cycle symbol)
+  :group 'theme)
+
+(defcustom theme-after-change
+  nil
+  "Hook invoked after a new theme is loaded"
+  :type 'hook
+  :group 'theme)
+
+(defun theme-whitelist-set (theme)
+  "Focus the THEME in the `theme-whitelist' cycle."
+  (cycle-focus! (lambda (x) (equal x theme)) theme-whitelist)
+  (theme--set (cycle-current theme-whitelist)))
+
+(defun theme-select ()
+  "Load a theme using `completing-read'."
+  (interactive)
+  (let ((theme (completing-read "Theme: " (cycle-to-list theme-whitelist))))
+    (theme--disable-all)
+    (theme--set (intern theme))))
+
+(defun theme-next ()
+  "Disable the currently active theme and load the next theme."
+  (interactive)
+  (disable-theme (cycle-current theme-whitelist))
+  (theme--set (cycle-next! theme-whitelist))
+  (message (format "Active theme: %s" (cycle-current theme-whitelist))))
+
+(defun theme-prev ()
+  "Disable the currently active theme and load the previous theme."
+  (interactive)
+  (disable-theme (cycle-current theme-whitelist))
+  (theme--set (cycle-prev! theme-whitelist))
+  (message (format "Active theme: %s" (cycle-current theme-whitelist))))
+
+(defun theme--disable-all ()
+  "Disable all currently enabled themes."
+  (interactive)
+  (dolist (x custom-enabled-themes)
+    (disable-theme x)))
+
+(defun theme--set (theme)
+    "Call `load-theme' with `THEME', ensuring that the line numbers are bright.
+There is no hook that I'm aware of to handle this more elegantly."
+    (load-theme theme t)
+    (run-hooks 'theme-after-change))
+
+(provide 'theme)
+;;; theme.el ends here
diff --git a/users/wpcarro/emacs/pkgs/tuple/default.nix b/users/wpcarro/emacs/pkgs/tuple/default.nix
new file mode 100644
index 000000000000..0626370e4795
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/tuple/default.nix
@@ -0,0 +1,10 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "tuple";
+    version = "1.0.0";
+    src = ./tuple.el;
+  })
+{ }
diff --git a/users/wpcarro/emacs/pkgs/tuple/tuple.el b/users/wpcarro/emacs/pkgs/tuple/tuple.el
new file mode 100644
index 000000000000..848c6fa48b15
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/tuple/tuple.el
@@ -0,0 +1,93 @@
+;;; tuple.el --- Tuple API for Elisp -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Work with cons cells with two elements with a familiar API for those who have
+;; worked with tuples before.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct tuple first second)
+
+;; Create
+(defun tuple-new ()
+  "Return an empty tuple."
+  (make-tuple :first nil
+              :second nil))
+
+(defun tuple-from (a b)
+  "Return a new tuple from A and B."
+  (make-tuple :first a
+              :second b))
+
+(defun tuple-from-dotted (dp)
+  "Convert dotted pair, DP, into a tuple."
+  (tuple-from (car dp) (cdr dp)))
+
+;; Read
+(defun tuple-first (pair)
+  "Return the first element of PAIR."
+  (tuple-first pair))
+
+(defun tuple-second (pair)
+  "Return the second element of PAIR."
+  (tuple-second pair))
+
+;; Update
+(defun tuple-map-each (f g pair)
+  "Apply F to first, G to second in PAIR."
+  (->> pair
+       (tuple-map-first f)
+       (tuple-map-second g)))
+
+(defun tuple-map (f pair)
+  "Apply F to PAIR."
+  (let ((pair-copy (copy-tuple pair)))
+    (funcall f pair-copy)))
+
+(defun tuple-map-first (f pair)
+  "Apply function F to the first element of PAIR."
+  (let ((pair-copy (copy-tuple pair)))
+    (setf (tuple-first pair-copy) (funcall f (tuple-first pair-copy)))
+    pair-copy))
+
+(defun tuple-map-second (f pair)
+  "Apply function F to the second element of PAIR."
+  (let ((pair-copy (copy-tuple pair)))
+    (setf (tuple-second pair-copy) (funcall f (tuple-second pair-copy)))
+    pair-copy))
+
+(defun tuple-set-first (a pair)
+  "Return a new tuple with the first element set as A in PAIR."
+  (tuple-map-first (lambda (_) a) pair))
+
+(defun tuple-set-second (b pair)
+  "Return a new tuple with the second element set as B in PAIR."
+  (tuple-map-second (lambda (_) b) pair))
+
+;; Delete
+(defun tuple-delete-first (pair)
+  "Return PAIR with the first element set to nil."
+  (tuple-set-first nil pair))
+
+(defun tuple-delete-second (pair)
+  "Return PAIR with the second element set to nil."
+  (tuple-set-second nil pair))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Predicates
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun tuple-instance? (x)
+  "Return t if X is a tuple."
+  (tuple-p x))
+
+(provide 'tuple)
+;;; tuple.el ends here
diff --git a/users/wpcarro/emacs/pkgs/vector/default.nix b/users/wpcarro/emacs/pkgs/vector/default.nix
new file mode 100644
index 000000000000..c0a475aaaa82
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vector/default.nix
@@ -0,0 +1,21 @@
+{ pkgs, depot, ... }:
+
+let
+  vector = pkgs.callPackage
+    ({ emacsPackages }:
+      emacsPackages.trivialBuild {
+        pname = "vector";
+        version = "1.0.0";
+        src = ./vector.el;
+      })
+    { };
+
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs28).emacsWithPackages (epkgs: [ vector ]);
+in
+vector.overrideAttrs (_old: {
+  doCheck = true;
+  checkPhase = ''
+    ${emacs}/bin/emacs -batch \
+      -l ert -l ${./tests.el} -f ert-run-tests-batch-and-exit
+  '';
+})
diff --git a/users/wpcarro/emacs/pkgs/vector/tests.el b/users/wpcarro/emacs/pkgs/vector/tests.el
new file mode 100644
index 000000000000..ffa983188229
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vector/tests.el
@@ -0,0 +1,20 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'ert)
+(require 'vector)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tests
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(ert-deftest vector-misc-tests ()
+  (let ((xs [1 2 3])
+        (ys [1 2 3]))
+    (should (= 1 (vector-get 0 ys)))
+    (vector-set 0 4 ys)
+    (should (= 1 (vector-get 0 ys)))
+    (should (= 1 (vector-get 0 xs)))
+    (vector-set! 0 4 xs)
+    (should (= 4 (vector-get 0 xs)))))
diff --git a/users/wpcarro/emacs/pkgs/vector/vector.el b/users/wpcarro/emacs/pkgs/vector/vector.el
new file mode 100644
index 000000000000..87f38d7d93e2
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vector/vector.el
@@ -0,0 +1,58 @@
+;;; vector.el --- Working with Elisp's Vector data type -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; It might be best to think of Elisp vectors as tuples in languages like
+;; Haskell or Erlang.
+;;
+;; Not surprisingly, this API is modelled after Elixir's Tuple API.
+;;
+;; Some Elisp trivia:
+;; - "Array": Usually means vector or string.
+;; - "Sequence": Usually means list or "array" (see above).
+;;
+;; It might be a good idea to think of Array and Sequence as typeclasses in
+;; Elisp.  This is perhaps more similar to Elixir's notion of the Enum protocol.
+;;
+;; Intentionally not supporting a to-list function, because tuples can contain
+;; heterogenous types whereas lists should contain homogenous types.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Library
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun vector-concat (&rest args)
+  "Return a new vector composed of all vectors in `ARGS'."
+  (apply #'vconcat args))
+
+(defun vector-prepend (x xs)
+  "Add `X' to the beginning of `XS'."
+  (vector-concat `[,x] xs))
+
+(defun vector-append (x xs)
+  "Add `X' to the end of `XS'."
+  (vector-concat xs `[,x]))
+
+(defun vector-get (i xs)
+  "Return the value in `XS' at index, `I'."
+  (aref xs i))
+
+(defun vector-set (i v xs)
+  "Set index `I' to value `V' in `XS'.
+Returns a copy of `XS' with the updates."
+  (let ((copy (vconcat [] xs)))
+    (aset copy i v)
+    copy))
+
+(defun vector-set! (i v xs)
+  "Set index `I' to value `V' in `XS'.
+This function mutates XS."
+  (aset xs i v))
+
+(provide 'vector)
+;;; vector.el ends here
diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/README.md b/users/wpcarro/emacs/pkgs/vterm-mgt/README.md
new file mode 100644
index 000000000000..b855826929ca
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vterm-mgt/README.md
@@ -0,0 +1,17 @@
+# vterm-mgt.el
+
+[![Build status](https://badge.buildkite.com/016bff4b8ae2704a3bbbb0a250784e6692007c582983b6dea7.svg?branch=refs/heads/canon)](https://buildkite.com/tvl/depot)
+
+[emacs-libvterm](https://github.com/akermu/emacs-libvterm) is a feature-complete
+terminal emulator inside Emacs based on libvterm.
+
+`vterm-mgt.el`, adds functionality on top of `vterm` to allow you to:
+
+* find-or-create `vterm` instances
+* fuzzily switch between existing `vterm` buffers
+* cycle through existing `vterm` instances
+* easily rename `vterm` buffers
+
+## Alternatives to vterm-mgt.el
+
+* [multi-vterm](https://github.com/suonlight/multi-vterm)
diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix b/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix
new file mode 100644
index 000000000000..88eb5502042a
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix
@@ -0,0 +1,19 @@
+{ pkgs, depot, ... }:
+
+pkgs.emacsPackages.trivialBuild {
+  pname = "vterm-mgt";
+  version = "1.0.0";
+  src = ./vterm-mgt.el;
+  packageRequires =
+    (with pkgs.emacsPackages; [
+      vterm
+    ]) ++
+    (with depot.users.wpcarro.emacs.pkgs; [
+      cycle
+    ]);
+  passthru.meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush {
+    filter = ":/users/wpcarro/emacs/pkgs/vterm-mgt";
+    remote = "git@github.com:wpcarro/vterm-mgt.el.git";
+    ref = "refs/heads/canon";
+  };
+}
diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el b/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el
new file mode 100644
index 000000000000..c082e54a5976
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el
@@ -0,0 +1,140 @@
+;;; vterm-mgt.el --- Help me manage my vterm instances -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+
+;;; Commentary:
+;; Supporting functions to instantiate vterm buffers, kill existing vterm
+;; buffers, rename vterm buffers, cycle forwards and backwards through vterm
+;; buffers.
+;;
+;; Many of the functions defined herein are intended to be bound to
+;; `vterm-mode-map'.  Some assertions are made to guard against calling
+;; functions that are intended to be called from outside of a vterm buffer.
+;; These assertions shouldn't error when the functions are bound to
+;; `vterm-mode-map'.  If for some reason, you'd like to bind these functions to
+;; a separate keymap, caveat emptor.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'cycle)
+(require 'vterm)
+(require 'seq)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defgroup vterm-mgt nil
+  "Customization options for `vterm-mgt'."
+  :group 'vterm)
+
+(defcustom vterm-mgt-scroll-on-focus nil
+  "When t, call `end-of-buffer' after focusing a vterm instance."
+  :type '(boolean)
+  :group 'vterm-mgt)
+
+(defconst vterm-mgt--instances (cycle-new)
+  "A cycle tracking all of my vterm instances.")
+
+(defun vterm-mgt--instance? (b)
+  "Return t if the buffer B is a vterm instance."
+  (equal 'vterm-mode (buffer-local-value 'major-mode b)))
+
+(defun vterm-mgt--assert-vterm-buffer ()
+  "Error when the `current-buffer' is not a vterm buffer."
+  (unless (vterm-mgt--instance? (current-buffer))
+    (error "Current buffer is not a vterm buffer")))
+
+(defun vterm-mgt-next ()
+  "Replace the current buffer with the next item in `vterm-mgt--instances'.
+This function should be called from a buffer running vterm."
+  (interactive)
+  (vterm-mgt--assert-vterm-buffer)
+  (vterm-mgt-reconcile-state)
+  (cycle-focus-item! (current-buffer) vterm-mgt--instances)
+  (switch-to-buffer (cycle-next! vterm-mgt--instances))
+  (when vterm-mgt-scroll-on-focus (end-of-buffer)))
+
+(defun vterm-mgt-prev ()
+  "Replace the current buffer with the previous item in `vterm-mgt--instances'.
+This function should be called from a buffer running vterm."
+  (interactive)
+  (vterm-mgt--assert-vterm-buffer)
+  (vterm-mgt-reconcile-state)
+  (cycle-focus-item! (current-buffer) vterm-mgt--instances)
+  (switch-to-buffer (cycle-prev! vterm-mgt--instances))
+  (when vterm-mgt-scroll-on-focus (end-of-buffer)))
+
+(defun vterm-mgt-instantiate ()
+  "Create a new vterm instance.
+
+Prefer calling this function instead of `vterm'.  This function ensures that the
+  newly created instance is added to `vterm-mgt--instances'.
+
+If however you must call `vterm', if you'd like to cycle through vterm
+  instances, make sure you call `vterm-mgt-reconcile-state' to allow vterm-mgt
+  to collect any untracked vterm instances."
+  (interactive)
+  (vterm-mgt-reconcile-state)
+  (let ((buffer (vterm t)))
+    (cycle-append! buffer vterm-mgt--instances)
+    (cycle-focus-item! buffer vterm-mgt--instances)))
+
+(defun vterm-mgt-kill ()
+  "Kill the current buffer and remove it from `vterm-mgt--instances'.
+This function should be called from a buffer running vterm."
+  (interactive)
+  (vterm-mgt--assert-vterm-buffer)
+  (let* ((buffer (current-buffer)))
+    (when (kill-buffer buffer)
+      (vterm-mgt-reconcile-state))))
+
+(defun vterm-mgt-find-or-create ()
+  "Call `switch-to-buffer' on a focused vterm instance if there is one.
+
+When `cycle-focused?' returns nil, focus the first item in the cycle.  When
+there are no items in the cycle, call `vterm-mgt-instantiate' to create a vterm
+instance."
+  (interactive)
+  (vterm-mgt-reconcile-state)
+  (if (cycle-empty? vterm-mgt--instances)
+      (vterm-mgt-instantiate)
+    (if (cycle-focused? vterm-mgt--instances)
+        (switch-to-buffer (cycle-current vterm-mgt--instances))
+      (progn
+        (cycle-jump! 0 vterm-mgt--instances)
+        (switch-to-buffer (cycle-current vterm-mgt--instances))))))
+
+(defun vterm-mgt-rename-buffer (name)
+  "Rename the current buffer ensuring that its NAME is wrapped in *vterm<...>*.
+This function should be called from a buffer running vterm."
+  (interactive "SRename vterm buffer: ")
+  (vterm-mgt--assert-vterm-buffer)
+  (rename-buffer (format "*vterm<%s>*" name)))
+
+(defun vterm-mgt-reconcile-state ()
+  "Fill `vterm-mgt--instances' with the existing vterm buffers.
+
+If for whatever reason, the state of `vterm-mgt--instances' is corrupted and
+  misaligns with the state of vterm buffers in Emacs, use this function to
+  restore the state."
+  (interactive)
+  (setq vterm-mgt--instances
+        (cycle-from-list (seq-filter #'vterm-mgt--instance? (buffer-list)))))
+
+(defun vterm-mgt-select ()
+  "Select a vterm instance by name from the list in `vterm-mgt--instances'."
+  (interactive)
+  (vterm-mgt-reconcile-state)
+  (switch-to-buffer
+   (completing-read "Switch to vterm: "
+                    (seq-map #'buffer-name (cycle-to-list vterm-mgt--instances)))))
+
+(provide 'vterm-mgt)
+;;; vterm-mgt.el ends here
diff --git a/users/wpcarro/emacs/pkgs/zle/default.nix b/users/wpcarro/emacs/pkgs/zle/default.nix
new file mode 100644
index 000000000000..9d4820a9445e
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/zle/default.nix
@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "zle";
+    version = "1.0.0";
+    src = ./zle.el;
+  })
+{ }
diff --git a/users/wpcarro/emacs/pkgs/zle/zle.el b/users/wpcarro/emacs/pkgs/zle/zle.el
new file mode 100644
index 000000000000..21a6e35f13d3
--- /dev/null
+++ b/users/wpcarro/emacs/pkgs/zle/zle.el
@@ -0,0 +1,90 @@
+;;; zle.el --- Functions to mimmick my ZLE KBDs -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24"))
+
+;;; Commentary:
+;; This is primarily for personal use.  The keybindings that I choose are those
+;; that feel slightly mnemonic while also not shadowing important bindings.
+;; It's quite possible that our tastes will differ here.
+;;
+;; All of these keybindings are intended to shave off milliseconds off your
+;; typing.  I don't expect these numbers to sum up to a meaningful amount.  The
+;; primary reason that I wrote this, is that it introduces a small amount of
+;; structural editing to my workflow.  I've been using these exact keybindings
+;; on the command line, and I find them subtely delightful to use.  So much so
+;; that I decided to bring them to my Emacs configuration.
+;;
+;; ZLE is the Z-shell line editor.  I have some KBDs and functions that I often
+;; want in Emacs.
+;;
+;; Usage:
+;; Consider running `(zle-minor-mode)' to run this globally.  Depending on your
+;; configuration, it could be non-disruptive, disruptive, or extremely
+;; disruptive.
+
+;;; Code:
+
+;; subshell (C-j)
+(defun zle-subshell ()
+  "Insert the characters necessary to create a subshell."
+  (interactive)
+  (insert-char ?$)
+  (insert-char ?\()
+  (save-excursion
+    (insert-char ?\))))
+
+;; variable (C-v)
+(defun zle-variable ()
+  "Insert the characters to reference a variable."
+  (interactive)
+  (insert-char ?$)
+  (insert-char ?{)
+  (save-excursion
+    (insert-char ?})))
+
+;; 2x dash (C-M--)
+(defun zle-dash-dash ()
+  "Insert the characters for flags with 2x dashes."
+  (interactive)
+  (insert-char ? )
+  (insert-char ?-)
+  (insert-char ?-))
+
+;; 1x quotes (M-')
+(defun zle-single-quote ()
+  "Insert the characters to quickly create single quotes."
+  (interactive)
+  (insert-char ? )
+  (insert-char ?')
+  (save-excursion
+    (insert-char ?')))
+
+;; 2x quotes (M-")
+(defun zle-double-quote ()
+  "Insert the characters to quickly create double quotes."
+  (interactive)
+  (insert-char ? )
+  (insert-char ?\")
+  (save-excursion
+    (insert-char ?\")))
+
+(defvar zle-kbds
+  (let ((map (make-sparse-keymap)))
+    (define-key map (kbd "C-j") #'zle-subshell)
+    (define-key map (kbd "C-v") #'zle-variable)
+    (define-key map (kbd "C-M--") #'zle-dash-dash)
+    (define-key map (kbd "M-'") #'zle-single-quote)
+    (define-key map (kbd "M-\"") #'zle-double-quote)
+    map)
+  "Keybindings shaving milliseconds off of typing.")
+
+(define-minor-mode zle-minor-mode
+  "A minor mode mirroring my ZLE keybindings."
+  :init-value nil
+  :lighter " zle"
+  :keymap zle-kbds)
+
+(provide 'zle)
+;;; zle.el ends here
diff --git a/users/wpcarro/emacs/snippets.md b/users/wpcarro/emacs/snippets.md
new file mode 100644
index 000000000000..2081b5617184
--- /dev/null
+++ b/users/wpcarro/emacs/snippets.md
@@ -0,0 +1,22 @@
+# Snippets
+
+Specifying snippets that I plan on defining for most of the programming
+languages with which I work. I hope this will serve as a checklist of language
+constructs I should support when adopting a new language.
+
+## Shared language features
+
+These are language features that should be available across most of the
+languages that I'm hoping to support.
+
+- `ld`: anonymous functions (i.e. lambdas)
+- `fn`: named function definition
+- `var`: variable definition
+
+## Miscellaneous other language KBDs
+
+Some of this is related to language tool must-haves, which may need to be a
+separate document.
+
+- `<leader>d`: Show documentation
+- `<leader>x`: Evaluate expression (works mostly for LISPs)
diff --git a/users/wpcarro/emacs/workspace.josh b/users/wpcarro/emacs/workspace.josh
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/users/wpcarro/emacs/workspace.josh