fucking(refactored): everything

nix/modules/steam/nixos.nix

@@ -4,8 +4,14 @@
   pkgs,
   ...
 }:
+let
+  cfg = config.modules.steam;
+in
 {
-  config = {
+  options.modules.steam = {
+    enable = lib.mkEnableOption "steam";
+  };
+  config = lib.mkIf cfg.enable {
     programs.steam = {
       enable = true;
       remotePlay.openFirewall = true;