Nixpkgs Update plus DE speed improvment

configuration.nix

@@ -36,6 +36,27 @@
 	services.xserver.displayManager.gdm.enable = true;
 	services.xserver.desktopManager.gnome.enable = true;
 
+	# Fix the GNOME Desktop Environment Performance
+
+	nixpkgs.config.allowAliases = false;
+
+  nixpkgs.overlays = [
+  # GNOME 46: triple-buffering-v4-46
+  	(final: prev: {
+    	gnome = prev.gnome.overrideScope (gnomeFinal: gnomePrev: {
+      	mutter = gnomePrev.mutter.overrideAttrs (old: {
+        	src = pkgs.fetchFromGitLab  {
+          	domain = "gitlab.gnome.org";
+          	owner = "vanvugt";
+          	repo = "mutter";
+          	rev = "triple-buffering-v4-46";
+          	hash = "sha256-nz1Enw1NjxLEF3JUG0qknJgf4328W/VvdMjJmoOEMYs=";
+        	};
+      	});
+    	});
+  	})
+	];
+
 	# Configure keymap in X11
 	services.xserver.xkb = {
 		layout = "us";
@@ -46,7 +67,6 @@
 	services.printing.enable = true;
 
 	# Enable sound with pipewire.
-	sound.enable = true;
 	hardware.pulseaudio.enable = false;
 	security.rtkit.enable = true;
 	services.pipewire = {

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1720031269,
-        "narHash": "sha256-rwz8NJZV+387rnWpTYcXaRNvzUSnnF9aHONoJIYmiUQ=",
+        "lastModified": 1721379653,
+        "narHash": "sha256-8MUgifkJ7lkZs3u99UDZMB4kbOxvMEXQZ31FO3SopZ0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9f4128e00b0ae8ec65918efeba59db998750ead6",
+        "rev": "1d9c2c9b3e71b9ee663d11c5d298727dace8d374",
         "type": "github"
       },
       "original": {