diff --git a/flake.lock b/flake.lock
index 10bc132..e2a9e33 100644
--- a/flake.lock
+++ b/flake.lock
@@ -184,11 +184,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1742169275,
-        "narHash": "sha256-nkH2Edu9rClcsQp2PYBe8E6fp8LDPi2uDBQ6wyMdeXI=",
+        "lastModified": 1742206328,
+        "narHash": "sha256-q+AQ///oMnyyFzzF4H9ShSRENt3Zsx37jTiRkLkXXE0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "5d9b5431f967007b3952c057fc92af49a4c5f3b2",
+        "rev": "096478927c360bc18ea80c8274f013709cf7bdcd",
         "type": "github"
       },
       "original": {
diff --git a/systems/x86_64-linux/puzzlevision/default.nix b/systems/x86_64-linux/puzzlevision/default.nix
index 17533a3..b015242 100644
--- a/systems/x86_64-linux/puzzlevision/default.nix
+++ b/systems/x86_64-linux/puzzlevision/default.nix
@@ -12,6 +12,34 @@
     inputs.hardware.nixosModules.common-pc-laptop-ssd
   ];
 
+  nixpkgs.overlays = [
+    (final: prev: {
+      mutter = prev.mutter.overrideAttrs (oldAttrs: {
+        # GNOME dynamic triple buffering
+        # See https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1441
+        src = final.fetchFromGitLab {
+          domain = "gitlab.gnome.org";
+          owner = "vanvugt";
+          repo = "mutter";
+          rev = "triple-buffering-v4-47";
+          hash = "sha256-6n5HSbocU8QDwuhBvhRuvkUE4NflUiUKE0QQ5DJEzwI=";
+        };
+
+        preConfigure = let
+          gvdb = final.fetchFromGitLab {
+            domain = "gitlab.gnome.org";
+            owner = "GNOME";
+            repo = "gvdb";
+            rev = "2b42fc75f09dbe1cd1057580b5782b08f2dcb400";
+            hash = "sha256-CIdEwRbtxWCwgTb5HYHrixXi+G+qeE1APRaUeka3NWk=";
+          };
+        in ''
+          cp -a "${gvdb}" ./subprojects/gvdb
+        '';
+      });
+    })
+  ];
+
   # Configure Sops
   sops.defaultSopsFile = lib.snowfall.fs.get-file "secrets/default.yaml";
   sops.age.keyFile = "/var/lib/sops-nix/key.txt"; # The main AGE key is expected in this location, it is only needed for this system.