✨ Added Thinkpad and pi4 configs

hosts/thinkpad/modules/gaming/default.nix

@@ -0,0 +1,12 @@
+{ pkgs, ... }:
+
+{
+  imports = [
+    ./steam.nix
+  ];
+
+  environment.systemPackages = with pkgs; [
+    heroic
+    wine
+  ];
+}

hosts/thinkpad/modules/gaming/steam.nix

@@ -0,0 +1,8 @@
+{
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
+    dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
+    localNetworkGameTransfers.openFirewall = true; # Open ports in the firewall for Steam Local Network Game Transfers
+  };
+}