Add bunch more programs / services modularly

system/app/gaming/gamemode.nix

@@ -0,0 +1,6 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = [ pkgs.gamemode ];
+  programs.gamemode.enable = true;
+}

system/app/gaming/steam.nix

@@ -0,0 +1,10 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = [ pkgs.steam ];
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    gamescopeSession.enable = true;
+  };
+}

system/app/launcher/dmenu.nix

@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = [ pkgs.dmenu ];
+}

system/app/launcher/rofi.nix

@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = [ pkgs.rofi ];
+}

system/app/terminal/kitty.nix

@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }:
+
+{
+  environment.systemPackages = [ pkgs.kitty ];
+}