diff --git a/modules/gaming.nix b/modules/gaming.nix
index 0503faf..e865b3b 100644
--- a/modules/gaming.nix
+++ b/modules/gaming.nix
@@ -85,7 +85,26 @@ with lib;
     enable = true;
     gamescopeSession.enable = true;
   };
-  programs.gamemode.enable = true;
+  programs.gamemode = {
+    enable = true;
+    settings = {
+      general = {
+        renice = 10;
+      };
+
+      # Warning: GPU optimisations have the potential to damage hardware
+      gpu = {
+        apply_gpu_optimisations = "accept-responsibility";
+        gpu_device = 0;
+        amd_performance_level = "high";
+      };
+
+      custom = {
+        start = "${pkgs.libnotify}/bin/notify-send 'GameMode started'";
+        end = "${pkgs.libnotify}/bin/notify-send 'GameMode ended'";
+      };
+    };
+  };
   environment.systemPackages = with pkgs; [
     airshipper
     lutris
diff --git a/qmk/qmk_firmware b/qmk/qmk_firmware
deleted file mode 160000
index 63ec2f6..0000000
--- a/qmk/qmk_firmware
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 63ec2f6b300977b057400584b0de8082015eaaa9