Add gamescope (steam) login option

common/pc/steam.nix

@@ -8,6 +8,20 @@ in
     programs.steam.enable = true;
     hardware.steam-hardware.enable = true; # steam controller
 
+    # Login DE Option: Steam Gamescope (Steam Deck-like session)
+    programs.gamescope = {
+      enable = true;
+    };
+    programs.steam.gamescopeSession = {
+      enable = true;
+      args = [
+        "--hdr-enabled"
+        "--hdr-itm-enabled"
+        "--adaptive-sync"
+      ];
+    };
+    environment.systemPackages = [ pkgs.gamescope-wsi ];
+
     users.users.googlebot.packages = [
       pkgs.steam
     ];

machines/zoidberg/default.nix

@@ -5,10 +5,6 @@
     ./hardware-configuration.nix
   ];
 
-  # Login DE Option: Steam
-  programs.steam.gamescopeSession.enable = true;
-  # programs.gamescope.capSysNice = true;
-
   # Login DE Option: Kodi
   services.xserver.desktopManager.kodi.enable = true;
   services.xserver.desktopManager.kodi.package =