{
  config,
  lib,
  pkgs,
  util,
  ...
}:
# Steam game launcher and runtime integration.
{
  options.modules.desktop.apps.steam.enable = lib.mkEnableOption "Steam game launcher";

  config = lib.mkIf config.modules.desktop.apps.steam.enable {
    programs.gamemode.enable = true;

    programs.steam = {
      enable = true;
      package = pkgs.steam.override {
        extraEnv.STEAM_FORCE_DESKTOPUI_SCALING = "1.5";
      };
    };

    hardware.steam-hardware.enable = true;

    environment.systemPackages = [
      pkgs.gamescope
    ];

    registry.window-icon.${config.networking.hostName}.steam = {
      class = "[Ss]team";
      icon = util.glyph "f1b6";
    };
  };
}