{pkgs, ...}: { programs.steam = { enable = true; remotePlay.openFirewall = true; dedicatedServer.openFirewall = true; localNetworkGameTransfers.openFirewall = true; }; programs.gamemode.enable = true; environment.systemPackages = with pkgs; [ protonup-ng ]; environment.sessionVariables = { STEAM_EXTRA_COMPAT_TOOLS_PATHS = "\${HOME}/.steam/root/compatibilitytools.d"; }; }