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-rw-r--r--third_party/overlays/dhall/OWNERS1
-rw-r--r--third_party/overlays/dhall/default.nix30
-rw-r--r--third_party/overlays/ecl-static.nix37
-rw-r--r--third_party/overlays/emacs.nix4
-rw-r--r--third_party/overlays/haskell/.skip-subtree1
-rw-r--r--third_party/overlays/haskell/OWNERS2
-rw-r--r--third_party/overlays/haskell/default.nix70
-rw-r--r--third_party/overlays/haskell/extra-pkgs/brick-0.73.nix70
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-error-tree-0.1.0.0.nix10
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-field-parser-0.1.0.1.nix35
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-json-0.2.1.0.nix45
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-label-0.1.0.1.nix10
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-prelude-0.1.0.0.nix37
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix29
-rw-r--r--third_party/overlays/haskell/extra-pkgs/pa-run-command-0.1.0.0.nix25
-rw-r--r--third_party/overlays/haskell/extra-pkgs/random-fu-0.2.nix41
-rw-r--r--third_party/overlays/haskell/extra-pkgs/rvar-0.2.nix25
-rw-r--r--third_party/overlays/patches/buf-tests-dont-use-file-transport.patch64
-rw-r--r--third_party/overlays/patches/evans-add-support-for-unix-domain-sockets.patch39
-rw-r--r--third_party/overlays/patches/notmuch-dottime.patch81
-rw-r--r--third_party/overlays/tvl.nix136
21 files changed, 792 insertions, 0 deletions
diff --git a/third_party/overlays/dhall/OWNERS b/third_party/overlays/dhall/OWNERS
new file mode 100644
index 000000000000..a64022791462
--- /dev/null
+++ b/third_party/overlays/dhall/OWNERS
@@ -0,0 +1 @@
+Profpatsch
diff --git a/third_party/overlays/dhall/default.nix b/third_party/overlays/dhall/default.nix
new file mode 100644
index 000000000000..462503599966
--- /dev/null
+++ b/third_party/overlays/dhall/default.nix
@@ -0,0 +1,30 @@
+{ ... }:
+
+self: super:
+
+let
+
+  # binary releases of dhall tools, since the build in nixpkgs is
+  # broken most of the time. The binaries are also fully static
+  # builds, instead of the half-static crap that nixpkgs produces.
+  easy-dhall-nix =
+    import
+      (builtins.fetchTarball {
+        url = "https://github.com/justinwoo/easy-dhall-nix/archive/dce9acbb99776a7f1344db4751d6080380f76f57.tar.gz";
+        sha256 = "0ckp6515gfvbxm08yyll87d9vg8sq2l21gwav2npzvwc3xz2lccf";
+      })
+      { pkgs = self; };
+in
+{
+  # ATTN: see the haskell overlay for some overrides we need.
+
+  # dhall = easy-dhall-nix.dhall-simple;
+  # dhall-nix = easy-dhall-nix.dhall-nix-simple;
+  dhall-bash = easy-dhall-nix.dhall-bash-simple;
+  dhall-docs = easy-dhall-nix.dhall-docs-simple;
+  dhall-json = easy-dhall-nix.dhall-json-simple;
+  dhall-lsp-server = easy-dhall-nix.dhall-lsp-simple;
+  # not yet in dhall-simple
+  # dhall-nixpkgs = easy-dhall-nix.dhall-nixpkgs-simple;
+  dhall-yaml = easy-dhall-nix.dhall-yaml-simple;
+}
diff --git a/third_party/overlays/ecl-static.nix b/third_party/overlays/ecl-static.nix
new file mode 100644
index 000000000000..66579c33abce
--- /dev/null
+++ b/third_party/overlays/ecl-static.nix
@@ -0,0 +1,37 @@
+{ ... }:
+
+self: super:
+
+{
+  # Statically linked ECL with statically linked dependencies.
+  # Works quite well, but solving this properly in a nixpkgs
+  # context will require figuring out cross compilation (for
+  # pkgsStatic), so we're gonna use this override for now.
+  #
+  # Note that ecl-static does mean that we have things
+  # statically linked against GMP and ECL which are LGPL.
+  # I believe this should be alright: The way ppl are gonna
+  # interact with the distributed binaries (i. e. the binary
+  # cache) is Nix in the depot monorepo, so the separability
+  # requirement should be satisfied: Source code or overriding
+  # would be available as ways to swap out the used GMP in the
+  # program.
+  # See https://www.gnu.org/licenses/gpl-faq.en.html#LGPLStaticVsDynamic
+  ecl-static = (super.pkgsMusl.ecl.override {
+    inherit (self.pkgsStatic) gmp libffi boehmgc;
+  }).overrideAttrs (drv: rec {
+    # version must not be changed as it indicates where to find the bundled libs,
+    # using ecl HEAD is necessary for us since it includes multiple fixes to do
+    # with bytecode compilation and allows to concatenate fasc files again.
+    src = self.fetchFromGitLab {
+      owner = "embeddable-common-lisp";
+      repo = "ecl";
+      rev = "1c989247c1b0bf1d38a76aec30b9ca5e41afe1e3";
+      sha256 = "0bzjqw6m1kk5z5b81yizic347k931msp5lf78x65dcw3fqfwv3xn";
+    };
+    configureFlags = drv.configureFlags ++ [
+      "--disable-shared"
+      "--with-dffi=no" # will fail at runtime anyways if statically linked
+    ];
+  });
+}
diff --git a/third_party/overlays/emacs.nix b/third_party/overlays/emacs.nix
new file mode 100644
index 000000000000..341feb501507
--- /dev/null
+++ b/third_party/overlays/emacs.nix
@@ -0,0 +1,4 @@
+# Emacs overlay from https://github.com/nix-community/emacs-overlay
+{ depot, ... }:
+
+import depot.third_party.sources.emacs-overlay
diff --git a/third_party/overlays/haskell/.skip-subtree b/third_party/overlays/haskell/.skip-subtree
new file mode 100644
index 000000000000..2a528eaa8a3a
--- /dev/null
+++ b/third_party/overlays/haskell/.skip-subtree
@@ -0,0 +1 @@
+extra-pkgs need to be callPackage-ed
diff --git a/third_party/overlays/haskell/OWNERS b/third_party/overlays/haskell/OWNERS
new file mode 100644
index 000000000000..5f87d2f27102
--- /dev/null
+++ b/third_party/overlays/haskell/OWNERS
@@ -0,0 +1,2 @@
+Profpatsch
+sterni
diff --git a/third_party/overlays/haskell/default.nix b/third_party/overlays/haskell/default.nix
new file mode 100644
index 000000000000..9841631e73d4
--- /dev/null
+++ b/third_party/overlays/haskell/default.nix
@@ -0,0 +1,70 @@
+# Defines an overlay for overriding Haskell packages, for example to
+# avoid breakage currently present in nixpkgs or to modify package
+# versions.
+
+{ lib, ... }:
+
+self: super: # overlay parameters for the nixpkgs overlay
+
+let
+  haskellLib = self.haskell.lib.compose;
+  dhall-source = subdir: pkg:
+    haskellLib.overrideSrc
+      {
+        src = "${super.fetchFromGitHub {
+          owner = "Profpatsch";
+          repo = "dhall-haskell";
+          # https://github.com/dhall-lang/dhall-haskell/pull/2426
+          rev = "5e3a407d8ac826597d935d8398825a0ca73fc4e9";
+          sha256 = "005plj6kgxlkm9npaq07kmsgmiqk50dpwb9li9w1ly4aj1zgfjnd";
+        }}/${subdir}";
+      }
+      (haskellLib.overrideCabal { patches = [ ]; } pkg);
+
+
+in
+{
+  haskellPackages = super.haskellPackages.override {
+    overrides = hsSelf: hsSuper: {
+
+      ihp-hsx = lib.pipe hsSuper.ihp-hsx [
+        (haskellLib.overrideSrc {
+          version = "1.1.0";
+          src = "${self.fetchFromGitHub {
+            owner = "digitallyinduced";
+            repo = "ihp";
+            rev = "b5d47963c998ccd779aa5c3d46484338fd621f0d";
+            sha256 = "sha256-M22W8VX4sRaeU2yVraR0S2t2VOwWGmoteD/M8TahdoE=";
+          }}/ihp-hsx";
+        })
+        haskellLib.doJailbreak
+      ];
+
+      # TODO: this is to fix a bug in dhall-nix
+      dhall = dhall-source "dhall" hsSuper.dhall;
+      dhall-nix = dhall-source "dhall-nix" hsSuper.dhall-nix;
+
+      pa-prelude = hsSelf.callPackage ./extra-pkgs/pa-prelude-0.1.0.0.nix { };
+      pa-error-tree = hsSelf.callPackage ./extra-pkgs/pa-error-tree-0.1.0.0.nix { };
+      pa-field-parser = hsSelf.callPackage ./extra-pkgs/pa-field-parser-0.1.0.1.nix { };
+      pa-label = hsSelf.callPackage ./extra-pkgs/pa-label-0.1.0.1.nix { };
+      pa-pretty = hsSelf.callPackage ./extra-pkgs/pa-pretty-0.1.1.0.nix { };
+      pa-json = hsSelf.callPackage ./extra-pkgs/pa-json-0.2.1.0.nix { };
+      pa-run-command = hsSelf.callPackage ./extra-pkgs/pa-run-command-0.1.0.0.nix { };
+    };
+  };
+
+  haskell = lib.recursiveUpdate super.haskell {
+    packages.ghc8107 = super.haskell.packages.ghc8107.override {
+      overrides = hsSelf: hsSuper: {
+        # TODO(sterni): TODO(grfn): patch xanthous to work with random-fu 0.3.*,
+        # so we can use GHC 9.0.2 and benefit from upstream binary cache.
+        random-fu = hsSelf.callPackage ./extra-pkgs/random-fu-0.2.nix { };
+        rvar = hsSelf.callPackage ./extra-pkgs/rvar-0.2.nix { };
+
+        # TODO(grfn): port to brick 1.4 (EventM gains an additional type argument in 1.0)
+        brick = hsSelf.callPackage ./extra-pkgs/brick-0.73.nix { };
+      };
+    };
+  };
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/brick-0.73.nix b/third_party/overlays/haskell/extra-pkgs/brick-0.73.nix
new file mode 100644
index 000000000000..c5e2883c751f
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/brick-0.73.nix
@@ -0,0 +1,70 @@
+{ mkDerivation
+, base
+, bytestring
+, config-ini
+, containers
+, contravariant
+, data-clist
+, deepseq
+, directory
+, dlist
+, exceptions
+, filepath
+, lib
+, microlens
+, microlens-mtl
+, microlens-th
+, QuickCheck
+, stm
+, template-haskell
+, text
+, text-zipper
+, transformers
+, unix
+, vector
+, vty
+, word-wrap
+}:
+mkDerivation {
+  pname = "brick";
+  version = "0.73";
+  sha256 = "741c8d0717f0ab5addd5d3acc88cb36d645a0c73907bde509b2fd9d9bc02039c";
+  isLibrary = true;
+  isExecutable = true;
+  libraryHaskellDepends = [
+    base
+    bytestring
+    config-ini
+    containers
+    contravariant
+    data-clist
+    deepseq
+    directory
+    dlist
+    exceptions
+    filepath
+    microlens
+    microlens-mtl
+    microlens-th
+    stm
+    template-haskell
+    text
+    text-zipper
+    transformers
+    unix
+    vector
+    vty
+    word-wrap
+  ];
+  testHaskellDepends = [
+    base
+    containers
+    microlens
+    QuickCheck
+    vector
+    vty
+  ];
+  homepage = "https://github.com/jtdaugherty/brick/";
+  description = "A declarative terminal user interface library";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-error-tree-0.1.0.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-error-tree-0.1.0.0.nix
new file mode 100644
index 000000000000..a38cd4efaace
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-error-tree-0.1.0.0.nix
@@ -0,0 +1,10 @@
+{ mkDerivation, base, containers, lib, pa-prelude }:
+mkDerivation {
+  pname = "pa-error-tree";
+  version = "0.1.0.0";
+  sha256 = "f82d3d905e8d9f0d31c81f31c424b9a95c65a8925517ccac92134f410cf8d639";
+  libraryHaskellDepends = [ base containers pa-prelude ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Collect a tree of errors and pretty-print";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-field-parser-0.1.0.1.nix b/third_party/overlays/haskell/extra-pkgs/pa-field-parser-0.1.0.1.nix
new file mode 100644
index 000000000000..b327340d349a
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-field-parser-0.1.0.1.nix
@@ -0,0 +1,35 @@
+{ mkDerivation
+, aeson
+, aeson-better-errors
+, attoparsec
+, base
+, case-insensitive
+, containers
+, lib
+, pa-error-tree
+, pa-prelude
+, scientific
+, semigroupoids
+, text
+}:
+mkDerivation {
+  pname = "pa-field-parser";
+  version = "0.1.0.1";
+  sha256 = "e7fd0369898b6993e6e2aaab43e7cc84d173dc2d21eadca1884d2e7a780ad71f";
+  libraryHaskellDepends = [
+    aeson
+    aeson-better-errors
+    attoparsec
+    base
+    case-insensitive
+    containers
+    pa-error-tree
+    pa-prelude
+    scientific
+    semigroupoids
+    text
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "“Vertical” parsing of values";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.1.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.1.0.nix
new file mode 100644
index 000000000000..4beeba32fe61
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-json-0.2.1.0.nix
@@ -0,0 +1,45 @@
+{ mkDerivation
+, aeson
+, aeson-better-errors
+, aeson-pretty
+, base
+, base64-bytestring
+, bytestring
+, containers
+, hspec-core
+, hspec-expectations
+, lib
+, pa-error-tree
+, pa-label
+, pa-prelude
+, scientific
+, text
+, time
+, vector
+}:
+mkDerivation {
+  pname = "pa-json";
+  version = "0.2.1.0";
+  sha256 = "d0c274fa38c05d38e9c2c15ee9dd4ff3ac369650dbc918c973863457110646c8";
+  libraryHaskellDepends = [
+    aeson
+    aeson-better-errors
+    aeson-pretty
+    base
+    base64-bytestring
+    bytestring
+    containers
+    hspec-core
+    hspec-expectations
+    pa-error-tree
+    pa-label
+    pa-prelude
+    scientific
+    text
+    time
+    vector
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Our JSON parsers/encoders";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-label-0.1.0.1.nix b/third_party/overlays/haskell/extra-pkgs/pa-label-0.1.0.1.nix
new file mode 100644
index 000000000000..1da78260cc66
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-label-0.1.0.1.nix
@@ -0,0 +1,10 @@
+{ mkDerivation, base, lib }:
+mkDerivation {
+  pname = "pa-label";
+  version = "0.1.0.1";
+  sha256 = "0131ab7718d910a94cd8cc881e51b7371a060dadfeabc8fd78513a7f27ee8d35";
+  libraryHaskellDepends = [ base ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Labels, and labelled tuples and enums (GHC >9.2)";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-prelude-0.1.0.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-prelude-0.1.0.0.nix
new file mode 100644
index 000000000000..765ed31ba6c3
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-prelude-0.1.0.0.nix
@@ -0,0 +1,37 @@
+{ mkDerivation
+, base
+, bytestring
+, containers
+, error
+, exceptions
+, lib
+, mtl
+, profunctors
+, PyF
+, semigroupoids
+, text
+, these
+, validation-selective
+}:
+mkDerivation {
+  pname = "pa-prelude";
+  version = "0.1.0.0";
+  sha256 = "554556e3acbf7154131ed05209d803a19d6aa1c7d675fcb10501de50869c49ab";
+  libraryHaskellDepends = [
+    base
+    bytestring
+    containers
+    error
+    exceptions
+    mtl
+    profunctors
+    PyF
+    semigroupoids
+    text
+    these
+    validation-selective
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "The Possehl Analytics Prelude";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix
new file mode 100644
index 000000000000..d6dadef849a1
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-pretty-0.1.1.0.nix
@@ -0,0 +1,29 @@
+{ mkDerivation
+, aeson
+, aeson-pretty
+, ansi-terminal
+, base
+, hscolour
+, lib
+, nicify-lib
+, pa-prelude
+, text
+}:
+mkDerivation {
+  pname = "pa-pretty";
+  version = "0.1.1.0";
+  sha256 = "da925a7cf2ac49c5769d7ebd08c2599b537efe45b3d506bf4d7c8673633ef6c9";
+  libraryHaskellDepends = [
+    aeson
+    aeson-pretty
+    ansi-terminal
+    base
+    hscolour
+    nicify-lib
+    pa-prelude
+    text
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Some pretty-printing helpers";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/pa-run-command-0.1.0.0.nix b/third_party/overlays/haskell/extra-pkgs/pa-run-command-0.1.0.0.nix
new file mode 100644
index 000000000000..b12eb5efbf5f
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/pa-run-command-0.1.0.0.nix
@@ -0,0 +1,25 @@
+{ mkDerivation
+, base
+, bytestring
+, lib
+, monad-logger
+, pa-prelude
+, text
+, typed-process
+}:
+mkDerivation {
+  pname = "pa-run-command";
+  version = "0.1.0.0";
+  sha256 = "37837e0cddedc9b615063f0357115739c53b5dcb8af82ce86a95a3a5c88c29a3";
+  libraryHaskellDepends = [
+    base
+    bytestring
+    monad-logger
+    pa-prelude
+    text
+    typed-process
+  ];
+  homepage = "https://github.com/possehl-analytics/pa-hackage";
+  description = "Helper functions for spawning subprocesses";
+  license = lib.licenses.bsd3;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/random-fu-0.2.nix b/third_party/overlays/haskell/extra-pkgs/random-fu-0.2.nix
new file mode 100644
index 000000000000..1626eca7be4b
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/random-fu-0.2.nix
@@ -0,0 +1,41 @@
+{ mkDerivation
+, base
+, erf
+, lib
+, math-functions
+, monad-loops
+, mtl
+, random
+, random-shuffle
+, random-source
+, rvar
+, syb
+, template-haskell
+, transformers
+, vector
+}:
+mkDerivation {
+  pname = "random-fu";
+  version = "0.2.7.7";
+  sha256 = "8466bcfb5290bdc30a571c91e1eb526c419ea9773bc118996778b516cfc665ca";
+  revision = "1";
+  editedCabalFile = "16nhymfriygqr2by9v72vdzv93v6vhd9z07pgaji4zvv66jikv82";
+  libraryHaskellDepends = [
+    base
+    erf
+    math-functions
+    monad-loops
+    mtl
+    random
+    random-shuffle
+    random-source
+    rvar
+    syb
+    template-haskell
+    transformers
+    vector
+  ];
+  homepage = "https://github.com/mokus0/random-fu";
+  description = "Random number generation";
+  license = lib.licenses.publicDomain;
+}
diff --git a/third_party/overlays/haskell/extra-pkgs/rvar-0.2.nix b/third_party/overlays/haskell/extra-pkgs/rvar-0.2.nix
new file mode 100644
index 000000000000..c00f5a1a8d9b
--- /dev/null
+++ b/third_party/overlays/haskell/extra-pkgs/rvar-0.2.nix
@@ -0,0 +1,25 @@
+{ mkDerivation
+, base
+, lib
+, MonadPrompt
+, mtl
+, random-source
+, transformers
+}:
+mkDerivation {
+  pname = "rvar";
+  version = "0.2.0.6";
+  sha256 = "01e18875ffde43f9591a8acd9f60c9c51704a026e51c1a6797faecd1c7ae8cd3";
+  revision = "1";
+  editedCabalFile = "1jn9ivlj3k65n8d9sfsp882m5lvni1ah79mk0cvkz91pgywvkiyq";
+  libraryHaskellDepends = [
+    base
+    MonadPrompt
+    mtl
+    random-source
+    transformers
+  ];
+  homepage = "https://github.com/mokus0/random-fu";
+  description = "Random Variables";
+  license = lib.licenses.publicDomain;
+}
diff --git a/third_party/overlays/patches/buf-tests-dont-use-file-transport.patch b/third_party/overlays/patches/buf-tests-dont-use-file-transport.patch
new file mode 100644
index 000000000000..34be80eb361d
--- /dev/null
+++ b/third_party/overlays/patches/buf-tests-dont-use-file-transport.patch
@@ -0,0 +1,64 @@
+commit e9219b88de5ed37af337ee2d2e71e7ec7c0aad1b
+Author: Robbert van Ginkel <rvanginkel@buf.build>
+Date:   Thu Oct 20 16:43:28 2022 -0400
+
+    Fix git unit test by using fake git server rather than file:// (#1518)
+    
+    More recent versions of git fix a CVE by disabling some usage of the
+    `file://` transport, see
+    https://github.blog/2022-10-18-git-security-vulnerabilities-announced/#cve-2022-39253.
+    We were using this transport in tests.
+    
+    Instead, use https://git-scm.com/docs/git-http-backend to serve up this
+    repository locally so we don't have to use the file protocol. This
+    should be a more accurate tests, since we mostly expect submodules to
+    come from servers.
+
+diff --git a/.golangci.yml b/.golangci.yml
+index 318d1171..865e03e7 100644
+--- a/.golangci.yml
++++ b/.golangci.yml
+@@ -136,3 +136,8 @@ issues:
+     - linters:
+         - containedctx
+       path: private/bufpkg/bufmodule/bufmoduleprotocompile
++      # We should be able to use net/http/cgi in a unit test, in addition the CVE mentions only versions of go < 1.6.3 are affected.
++    - linters:
++        - gosec
++      path: private/pkg/git/git_test.go
++      text: "G504:"
+diff --git a/private/pkg/git/git_test.go b/private/pkg/git/git_test.go
+index 7b77b6cd..7132054e 100644
+--- a/private/pkg/git/git_test.go
++++ b/private/pkg/git/git_test.go
+@@ -17,6 +17,8 @@ package git
+ import (
+ 	"context"
+ 	"errors"
++	"net/http/cgi"
++	"net/http/httptest"
+ 	"os"
+ 	"os/exec"
+ 	"path/filepath"
+@@ -213,6 +215,21 @@ func createGitDirs(
+ 	runCommand(ctx, t, container, runner, "git", "-C", submodulePath, "add", "test.proto")
+ 	runCommand(ctx, t, container, runner, "git", "-C", submodulePath, "commit", "-m", "commit 0")
+ 
++	gitExecPath, err := command.RunStdout(ctx, container, runner, "git", "--exec-path")
++	require.NoError(t, err)
++	t.Log(filepath.Join(string(gitExecPath), "git-http-backend"))
++	// https://git-scm.com/docs/git-http-backend#_description
++	f, err := os.Create(filepath.Join(submodulePath, ".git", "git-daemon-export-ok"))
++	require.NoError(t, err)
++	require.NoError(t, f.Close())
++	server := httptest.NewServer(&cgi.Handler{
++		Path: filepath.Join(strings.TrimSpace(string(gitExecPath)), "git-http-backend"),
++		Dir:  submodulePath,
++		Env:  []string{"GIT_PROJECT_ROOT=" + submodulePath},
++	})
++	t.Cleanup(server.Close)
++	submodulePath = server.URL
++
+ 	originPath := filepath.Join(tmpDir, "origin")
+ 	require.NoError(t, os.MkdirAll(originPath, 0777))
+ 	runCommand(ctx, t, container, runner, "git", "-C", originPath, "init")
diff --git a/third_party/overlays/patches/evans-add-support-for-unix-domain-sockets.patch b/third_party/overlays/patches/evans-add-support-for-unix-domain-sockets.patch
new file mode 100644
index 000000000000..c66528f53880
--- /dev/null
+++ b/third_party/overlays/patches/evans-add-support-for-unix-domain-sockets.patch
@@ -0,0 +1,39 @@
+From 55d7e7af7c56f678eb817059417241bb61ee5181 Mon Sep 17 00:00:00 2001
+From: Florian Klink <flokli@flokli.de>
+Date: Sun, 8 Oct 2023 11:00:27 +0200
+Subject: [PATCH] add support for unix domain sockets
+
+grpc.NewClient already supports connecting to unix domain sockets, and
+accepts a string anyways.
+
+As a quick fix, detect the `address` starting with `unix://` and don't
+add the port.
+
+In the long term, we might want to deprecate `host` and `port` cmdline
+args in favor of a single `address` arg.
+---
+ mode/common.go | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/mode/common.go b/mode/common.go
+index dfc7839..55f1e36 100644
+--- a/mode/common.go
++++ b/mode/common.go
+@@ -13,7 +13,13 @@ import (
+ )
+ 
+ func newGRPCClient(cfg *config.Config) (grpc.Client, error) {
+-	addr := fmt.Sprintf("%s:%s", cfg.Server.Host, cfg.Server.Port)
++	addr := cfg.Server.Host
++
++	// as long as the address doesn't start with unix, also add the port.
++	if !strings.HasPrefix(cfg.Server.Host, "unix://") {
++		addr = fmt.Sprintf("%s:%s", cfg.Server.Host, cfg.Server.Port)
++	}
++
+ 	if cfg.Request.Web {
+ 		//TODO: remove second arg
+ 		return grpc.NewWebClient(addr, cfg.Server.Reflection, false, "", "", "", grpc.Headers(cfg.Request.Header)), nil
+-- 
+2.42.0
+
diff --git a/third_party/overlays/patches/notmuch-dottime.patch b/third_party/overlays/patches/notmuch-dottime.patch
new file mode 100644
index 000000000000..7a9cfc6cc2a9
--- /dev/null
+++ b/third_party/overlays/patches/notmuch-dottime.patch
@@ -0,0 +1,81 @@
+From 569438172fa0e38129de4e61a72e06eff3330dca Mon Sep 17 00:00:00 2001
+From: Vincent Ambo <tazjin@google.com>
+Date: Thu, 10 Dec 2020 10:53:47 +0100
+Subject: [PATCH] time: Use dottime for formatting non-relative timestamps
+
+---
+ notmuch-time.c     | 10 +++++-----
+ util/gmime-extra.c |  7 +++++--
+ util/gmime-extra.h |  2 ++
+ 3 files changed, 12 insertions(+), 7 deletions(-)
+
+diff --git a/notmuch-time.c b/notmuch-time.c
+index cc7ffc23..3030a667 100644
+--- a/notmuch-time.c
++++ b/notmuch-time.c
+@@ -50,8 +50,8 @@ notmuch_time_relative_date (const void *ctx, time_t then)
+     time_t delta;
+     char *result;
+ 
+-    localtime_r (&now, &tm_now);
+-    localtime_r (&then, &tm_then);
++    gmtime_r (&now, &tm_now);
++    gmtime_r (&then, &tm_then);
+ 
+     result = talloc_zero_size (ctx, RELATIVE_DATE_MAX);
+     if (result == NULL)
+@@ -78,16 +78,16 @@ notmuch_time_relative_date (const void *ctx, time_t then)
+ 	if (tm_then.tm_wday == tm_now.tm_wday &&
+ 	    delta < DAY) {
+ 	    strftime (result, RELATIVE_DATE_MAX,
+-		      "Today %R", &tm_then);    /* Today 12:30 */
++		      "Today %k·%M", &tm_then); /* Today 12·30 */
+ 	    return result;
+ 	} else if ((tm_now.tm_wday + 7 - tm_then.tm_wday) % 7 == 1) {
+ 	    strftime (result, RELATIVE_DATE_MAX,
+-		      "Yest. %R", &tm_then);    /* Yest. 12:30 */
++		      "Yest. %k·%M", &tm_then); /* Yest. 12·30 */
+ 	    return result;
+ 	} else {
+ 	    if (tm_then.tm_wday != tm_now.tm_wday) {
+ 		strftime (result, RELATIVE_DATE_MAX,
+-			  "%a. %R", &tm_then);  /* Mon. 12:30 */
++			  "%a. %k·%M", &tm_then); /* Mon. 12·30 */
+ 		return result;
+ 	    }
+ 	}
+diff --git a/util/gmime-extra.c b/util/gmime-extra.c
+index 04d8ed3d..868a2f69 100644
+--- a/util/gmime-extra.c
++++ b/util/gmime-extra.c
+@@ -131,10 +131,13 @@ g_mime_message_get_date_string (void *ctx, GMimeMessage *message)
+     GDateTime *parsed_date = g_mime_message_get_date (message);
+ 
+     if (parsed_date) {
+-	char *date = g_mime_utils_header_format_date (parsed_date);
++	char *date = g_date_time_format(
++		parsed_date,
++		"%a, %d %b %Y %H·%M%z"
++	);
+ 	return g_string_talloc_strdup (ctx, date);
+     } else {
+-	return talloc_strdup (ctx, "Thu, 01 Jan 1970 00:00:00 +0000");
++	return talloc_strdup (ctx, "Thu, 01 Jan 1970 00·00:00");
+     }
+ }
+ 
+diff --git a/util/gmime-extra.h b/util/gmime-extra.h
+index 094309ec..e6c98f8d 100644
+--- a/util/gmime-extra.h
++++ b/util/gmime-extra.h
+@@ -1,5 +1,7 @@
+ #ifndef _GMIME_EXTRA_H
+ #define _GMIME_EXTRA_H
++#include <glib.h>
++#include <glib/gprintf.h>
+ #include <gmime/gmime.h>
+ #include <talloc.h>
+ 
+-- 
+2.29.2.576.ga3fc446d84-goog
+
diff --git a/third_party/overlays/tvl.nix b/third_party/overlays/tvl.nix
new file mode 100644
index 000000000000..c88bd4d74176
--- /dev/null
+++ b/third_party/overlays/tvl.nix
@@ -0,0 +1,136 @@
+# This overlay is used to make TVL-specific modifications in the
+# nixpkgs tree, where required.
+{ lib, depot, localSystem, ... }:
+
+self: super:
+let
+  # Rollback Nix to a stable version (2.3) with backports for
+  # build-user problems applied.
+  nixSrc =
+    let
+      # branch 2.3-backport-await-users
+      rev = "46a91f2abaee85135cbb447c13957d3c5e9091a9";
+    in
+    self.fetchFromGitHub
+      {
+        owner = "tvlfyi";
+        repo = "nix";
+        inherit rev;
+        hash = "sha256:0rwyrh471c5y64axyd8vzzzmzlscg97fsrjbgbm1a93wnzxcvnvk";
+      } // { revCount = 0; shortRev = builtins.substring 0 7 rev; };
+
+  nixTarball = (scopedImport
+    {
+      # The tarball job always uses currentSystem which we need to purify
+      builtins = builtins // { currentSystem = localSystem; };
+    }
+    "${nixSrc}/release.nix"
+    {
+      nix = nixSrc;
+      nixpkgs = self.path;
+      systems = [ ];
+    }
+  ).tarball;
+in
+depot.nix.readTree.drvTargets {
+  nix_2_3 = super.nix_2_3.overrideAttrs (_: {
+    src = "${nixTarball}/tarballs/nix-${nixTarball.version}.tar.xz";
+  });
+  nix = self.nix_2_3;
+  nix_latest = super.nix;
+
+  # To match telega in emacs-overlay or wherever
+  tdlib = super.tdlib.overrideAttrs (_: {
+    version = "1.8.16";
+    src = self.fetchFromGitHub {
+      owner = "tdlib";
+      repo = "td";
+      rev = "cde095db6c75827fe4bd237039574aad373ad96b";
+      sha256 = "1zzacz2mhjmc36aqdc5v8a7zdi0mi7k8hnrnpj9gii061pm4vx4v";
+    };
+  });
+
+  home-manager = super.home-manager.overrideAttrs (_: {
+    src = depot.third_party.sources.home-manager;
+    version = "git-"
+      + builtins.substring 0 7 depot.third_party.sources.home-manager.rev;
+  });
+
+  clang-tools_11 = self.clang-tools.override {
+    llvmPackages = self.llvmPackages_11;
+  };
+
+  # stdenv which uses clang, lld and libc++; full is a slight exaggeration,
+  # we for example don't use LLVM's libunwind
+  fullLlvm11Stdenv = self.overrideCC self.stdenv
+    (self.llvmPackages_11.libcxxStdenv.cc.override {
+      inherit (self.llvmPackages_11) bintools;
+    });
+
+  # Add our Emacs packages to the fixpoint
+  emacsPackagesFor = emacs: (
+    (super.emacsPackagesFor emacs).overrideScope' (eself: esuper: {
+      tvlPackages = depot.tools.emacs-pkgs // depot.third_party.emacs;
+
+      # Use the notmuch from nixpkgs instead of from the Emacs
+      # overlay, to avoid versions being out of sync.
+      notmuch = super.notmuch.emacs;
+
+      # Build EXWM with the depot sources instead.
+      depotExwm = esuper.exwm.overrideAttrs (_: {
+        src = depot.path.origSrc + "/third_party/exwm";
+      });
+
+      # Workaround for magit checking the git version at load time
+      magit = esuper.magit.overrideAttrs (_: {
+        propagatedNativeBuildInputs = [
+          self.git
+        ];
+      });
+    })
+  );
+
+  # dottime support for notmuch
+  notmuch = super.notmuch.overrideAttrs (old: {
+    passthru = old.passthru // {
+      patches = old.patches ++ [ ./patches/notmuch-dottime.patch ];
+    };
+  });
+
+  # nix-serve does not work with nix 2.4
+  # https://github.com/edolstra/nix-serve/issues/28
+  nix-serve = super.nix-serve.override { nix = self.nix_2_3; };
+
+  # Avoid builds of mkShell derivations in CI.
+  mkShell = super.lib.makeOverridable (args: (super.mkShell args).overrideAttrs (_: {
+    passthru = {
+      meta.ci.skip = true;
+    };
+  }));
+
+  # Pin a newer version of crate2nix from git, which is not officially
+  # released but supports `dep:` and conditional features
+  crate2nix = super.crate2nix.overrideAttrs (old: rec {
+    version = "unstable-2023-09-26";
+
+    src = self.fetchFromGitHub {
+      owner = "nix-community";
+      repo = "crate2nix";
+      rev = "8a33aec8795dcc98afbb0cd1030bb1c939ede211";
+      hash = "sha256-eFT2SUxTopxEvW0rcxSjQU6nbrQLI2FbyaVgtV8oiTk=";
+    };
+
+    cargoDeps = old.cargoDeps.overrideAttrs (_: {
+      inherit src;
+      outputHash = "sha256-elEIWHxyY3iccprIcbQA6GWFiq/n5kozpGfw/OmoSIg=";
+    });
+  });
+
+  evans = super.evans.overrideAttrs (old: {
+    patches = old.patches or [ ] ++ [
+      # add support for unix domain sockets
+      # https://github.com/ktr0731/evans/pull/680
+      ./patches/evans-add-support-for-unix-domain-sockets.patch
+    ];
+  });
+}