complete restructure

modules/gaming/gamemode.nix

@@ -0,0 +1,38 @@
+# modules/gaming/gamemode.nix
+# Gaming performance optimizations
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+
+{
+  programs.gamemode = {
+    enable = true;
+    enableRenice = true;
+    settings = {
+      general = {
+        renice = 10;
+        softrealtime = "auto";
+        inhibit_screensaver = 1;
+      };
+      gpu = {
+        apply_gpu_optimisations = "accept-responsibility";
+        gpu_device = 0;
+        amd_performance_level = "high";
+      };
+    };
+  };
+
+  boot.kernel.sysctl = {
+    "fs.inotify.max_user_watches" = 524288;
+    "vm.swappiness" = 10;
+    "vm.vfs_cache_pressure" = 50;
+  };
+
+  environment.systemPackages = with pkgs; [
+    gamemode
+    gamescope
+  ];
+}