Add basic ags theming

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

users/configs/ags/default.nix

@@ -1,6 +1,7 @@
 { user ? throw "user argument is required" }: { config, lib, pkgs, ... }:
 
 let
+  hmConfig = config.home-manager.users."${user.name}";
   agsConfig = (import ./src { inherit pkgs; });
 in
 {
@@ -11,5 +12,21 @@ in
       source = "${agsConfig}/share/config.js";
       target = "ags/config.js";
     };
+
+    programs.matugen.settings.templates.ags = {
+      input_path = ./theme.sass;
+      output_path = "${hmConfig.xdg.configHome}/ags/theme.sass";
+    };
+
+    wayland.windowManager.hyprland.initExtraConfig = "${lib.meta.getExe (pkgs.writeShellApplication {
+      name = "init-ags";
+      runtimeInputs = with pkgs; [
+        ags
+        sassc
+      ];
+      text = ''
+        ags &> /tmp/ags.log
+      '';
+    })} &";
   };
 }