remove desktop environment from deck

hosts/nixos/deck/home.nix

@@ -7,35 +7,8 @@
   # Import the common NixOS home configuration
   imports = [
     ../home-default.nix
-    ../../../modules/syncthing.nix
-    ../../../modules/firefox.nix
-    ../../../modules/ghostty.nix
-    ../../../modules/gnome/home.nix
   ];
 
-  # Always show GNOME top bar on Steam Deck
-  gnome-home-custom.alwaysShowTopBar = true;
-
-  # Disable Documents sync on Steam Deck (save space)
-  syncthing-custom.enabledFolders = [ "Credentials" ];
-
-  # Enable Ghostty terminal with OSC-52 clipboard support
-  programs.ghostty-custom = {
-    enable = true;
-    package = pkgs.ghostty;
-    fontSize = 12;
-    windowMode = "maximized";
-  };
-
-  # Enable Firefox browser
-  programs.firefox-custom = {
-    enable = true;
-    package = pkgs.firefox;
-  };
-
-  # ThinkPad-specific applications
   home.packages = with pkgs; [
-    keepassxc
-    vlc
   ];
 }

hosts/nixos/deck/system.nix

@@ -5,14 +5,10 @@
     ./hardware-configuration.nix
     ./disk-config.nix
     ../system-default.nix  # Common NixOS system configuration
-    ../../../modules/gnome/system.nix
     ../../../modules/wireguard.nix
     ../../../modules/login-display.nix
   ];
 
-  # Desktop module configuration (disable GDM for Jovian autoStart mode)
-  gnome-system-custom.enableDisplayManager = false;
-
   # Bootloader - standard UEFI setup
   boot.loader = {
     systemd-boot.enable = true;
@@ -70,7 +66,7 @@
     steam = {
       enable = true;
       autoStart = true;
-      desktopSession = "gnome";
+      desktopSession = "gamescope-wayland";
       user = "yanlin";
     };
     devices.steamdeck = {