Add emulation module (steam, wine, retroarch, pcsx2, ppsspp) + pi config

modules/emulation.nix

@@ -0,0 +1,32 @@
+{ config, pkgs, ... }:
+
+{
+  # === Gaming / Emulation ===
+  # Emulators, Steam, Wine for Windows apps, and Xbox One controller support.
+  # Modern kernels have xpad built-in for Xbox One controllers.
+  # User is added to the "input" group below for controller permissions.
+
+  # Steam — proper NixOS module (sets up FHS, udev, etc.)
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;  # Steam Remote Play
+    dedicatedServer.openFirewall = true;  # Factorio headless etc.
+  };
+
+  environment.systemPackages = with pkgs; [
+    # Windows apps via Wine (Logos Bible Software, etc.)
+    wineWow64Packages.stable
+    # Retroarch + cores (NES/SNES/PS1)
+    retroarch
+    # Standalone PS2 emulator
+    pcsx2
+    # Standalone PSP emulator
+    ppsspp-sdl
+  ];
+
+  # Add user to input group for controller access
+  # (xpad kernel module handles Xbox One controllers automatically)
+  users.users.sscoble = {
+    extraGroups = [ "input" ];
+  };
+}

modules/laptop.nix

@@ -1,7 +1,7 @@
 { config, pkgs, ... }:
 
 {
-  imports = [ ../hardware-configuration.nix ];
+  imports = [ ../hardware-configuration.nix ./emulation.nix ];
 
   # === System Packages ===
   environment.systemPackages = with pkgs; [