nixos-config/linux/protostar/gui.nix

{ config, ... }:

let usr = config.constants.userName; in {
  jovian = {
    devices.steamdeck.enable = true;
    steam = {
      enable = true;
      autoStart = true;
      desktopSession = "RetroArch";
      user = usr;
    };
  };

  services.xserver = {
    enable = true;
    desktopManager.retroarch.enable = true;
  };
}