Add gaming support

modules/programs/games.nix

@@ -0,0 +1,24 @@
+{
+  config,
+  pkgs,
+  nur,
+  lib,
+  unstable,
+  ...
+}: {
+  environment.systemPackages = [
+    unstable.heroic # Game Launcher
+    unstable.lutris # Game Launcher
+    unstable.steam # Game Launcher
+  ];
+
+  programs = {
+    steam = {
+      enable = true;
+    };
+    gamemode.enable = true; # Better Gaming Performance
+    # Steam: Right-click game - Properties - Launch options: gamemoderun %command%
+    # Lutris: General Preferences - Enable Feral GameMode
+    #                             - Global options - Add Environment Variables: LD_PRELOAD=/nix/store/*-gamemode-*-lib/lib/libgamemodeauto.so
+  };
+}