{ pkgs, ... }:
let
  openFirewall = false;
in
{
  programs.steam = {
    enable = true;
    remotePlay.openFirewall = openFirewall;
    localNetworkGameTransfers.openFirewall = openFirewall;
    dedicatedServer.openFirewall = openFirewall;
    extest.enable = true;

    package = pkgs.steam.override { extraEnv.MANGOHUD = true; };
  };

  programs.gamemode = {
    enable = true;
    enableRenice = false;
  };

  environment.systemPackages = with pkgs; [
    mangohud
    gamescope
    steamtinkerlaunch
  ];
}