{ pkgs, lib, config, ... }: let cfg = config.gaming.steam; in { options.gaming.steam = { enable = lib.mkEnableOption "enable steam"; }; config = lib.mkIf cfg.enable { programs.steam = { enable = true; gamescopeSession.enable = true; # requires setting launch option `gamescope -- %command%` remotePlay.openFirewall = true; # open ports for remote play #dedicatedServer.openFirewall = true; # open ports for source dedicated server }; }; }