re-structure package configuration. fully modularize everything

home/modules/gaming/default.nix

@@ -0,0 +1,28 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+with lib; let
+  cfg = config.local.apps.gaming;
+in {
+  options.local.apps.gaming = {
+    enable = mkEnableOption "gaming apps";
+  };
+  config = mkIf cfg.enable {
+    home.packages = [
+      # Steam. todo: move to the steam module later
+      (pkgs.callPackage ./package.nix {})
+      pkgs.protonup
+      pkgs.winetricks
+      pkgs.protontricks
+    ];
+
+    home.packages = with pkgs; [
+      lutris
+      openrct2
+      prismlauncher
+    ];
+  };
+}

home/modules/gaming/package.nix

@@ -0,0 +1,9 @@
+{
+  writeShellScriptBin,
+  steam-run,
+  steam,
+  ...
+}:
+writeShellScriptBin "steam" ''
+  exec ${steam-run}/bin/steam-run ${steam}/bin/steam -console
+''