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-rw-r--r--users/tazjin/nixos/modules/hidpi.nix17
-rw-r--r--users/tazjin/nixos/zamalek/default.nix1
2 files changed, 18 insertions, 0 deletions
diff --git a/users/tazjin/nixos/modules/hidpi.nix b/users/tazjin/nixos/modules/hidpi.nix
new file mode 100644
index 000000000000..942798112a43
--- /dev/null
+++ b/users/tazjin/nixos/modules/hidpi.nix
@@ -0,0 +1,17 @@
+# Configuration for machines with HiDPI displays, which are a total
+# mess, of course.
+{ ... }:
+
+{
+  # Expose a variable to all programs that might be interested in the
+  # screen settings to do conditional initialisation (mostly for Emacs).
+  environment.variables.HIDPI_SCREEN = "true";
+
+  # Ensure a larger font size in early boot stage.
+  hardware.video.hidpi.enable = true;
+
+  # Bump DPI across the board.
+  # TODO(tazjin): This should actually be set per monitor, but I
+  # haven't yet figured out the right interface for doing that.
+  services.xserver.dpi = 192;
+}
diff --git a/users/tazjin/nixos/zamalek/default.nix b/users/tazjin/nixos/zamalek/default.nix
index 487436f41d58..7b94d8723c47 100644
--- a/users/tazjin/nixos/zamalek/default.nix
+++ b/users/tazjin/nixos/zamalek/default.nix
@@ -15,6 +15,7 @@ in
   imports = [
     (usermod "desktop.nix")
     (usermod "fonts.nix")
+    (usermod "hidpi.nix")
     (usermod "home-config.nix")
     (usermod "laptop.nix")
     (usermod "persistence.nix")