From b84982fde7e70ed697f12edd89fc150aa8b42f6b Mon Sep 17 00:00:00 2001
From: Jordan Holt <jordan@vimium.com>
Date: Fri, 25 Apr 2025 22:55:08 +0100
Subject: [PATCH] hyprland: move env vars to uwsm

---
 users/jordan/graphical/hyprland/default.nix | 56 ++++++++++++++-------
 1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/users/jordan/graphical/hyprland/default.nix b/users/jordan/graphical/hyprland/default.nix
index fda18e1..3245d8d 100644
--- a/users/jordan/graphical/hyprland/default.nix
+++ b/users/jordan/graphical/hyprland/default.nix
@@ -6,9 +6,38 @@
 }:
 let
   inherit (lib)
+    attrValues
+    concatStringsSep
     elem
-    optionals
+    mapAttrs
+    mkIf
     ;
+  concatMapAttrsStringSep =
+    sep: f: attrs:
+    concatStringsSep sep (attrValues (mapAttrs f attrs));
+  globalVariables =
+    {
+      _JAVA_AWT_WM_NONREPARENTING = "1";
+      GDK_BACKEND = "wayland";
+      MOZ_ENABLE_WAYLAND = "1";
+      NIXOS_OZONE_WL = "1";
+      QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
+      QT_QPA_PLATFORM = "wayland";
+      SDL_VIDEODRIVE = "wayland";
+      XDG_SESSION_TYPE = "wayland";
+    }
+    // (
+      if elem "nvidia" osConfig.services.xserver.videoDrivers then
+        {
+          GBM_BACKEND = "nvidia-drm";
+          LIBVA_DRIVER_NAME = "nvidia";
+        }
+      else
+        { }
+    );
+  hyprVariables = {
+    AQ_DRM_DEVICES = "/dev/dri/card0:/dev/dri/card1";
+  };
 in
 {
   imports = [
@@ -22,26 +51,19 @@ in
     "SF Pro Text"
   ];
 
+  xdg.configFile = mkIf osConfig.programs.hyprland.withUWSM {
+    "uwsm/env".text = concatMapAttrsStringSep "\n" (
+      name: value: "export ${name}=${value}"
+    ) globalVariables;
+    "uwsm/env-hyprland".text = concatMapAttrsStringSep "\n" (
+      name: value: "export ${name}=${value}"
+    ) hyprVariables;
+  };
+
   wayland.windowManager.hyprland = {
     enable = true;
     # plugins = [ hypr-dynamic-cursors ]; # https://github.com/VirtCode/hypr-dynamic-cursors
     settings = {
-      env =
-        optionals (elem "nvidia" osConfig.services.xserver.videoDrivers) [
-          "GBM_BACKEND,nvidia-drm"
-          "LIBVA_DRIVER_NAME,nvidia"
-        ]
-        ++ [
-          "_JAVA_AWT_WM_NONREPARENTING,1"
-          "GDK_BACKEND,wayland"
-          "MOZ_ENABLE_WAYLAND,1"
-          "NIXOS_OZONE_WL,1"
-          "QT_WAYLAND_DISABLE_WINDOWDECORATION,1"
-          "QT_QPA_PLATFORM,wayland"
-          "SDL_VIDEODRIVER,wayland"
-          "XDG_SESSION_TYPE,wayland"
-        ];
-
       general = {
         gaps_in = 5;
         gaps_out = 20;