{
  pkgs,
  lib,
  config,
  ...
}: let
  cfg = config.programs.steam;
in {
  options.programs.steam.extraPkgs = with lib;
    mkOption {
      type = types.listOf types.package;
      default = [];
    };

  config = lib.mkIf cfg.enable {
    programs.steam.package = pkgs.steam.override {
      extraPkgs = _: cfg.extraPkgs;
    };
  };
}