nixcfg/modules/steam/default.nix

{ config, pkgs, ... }:

{
    hardware.steam-hardware.enable = true;
    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
    };
}