{ config, pkgs, lib, ... }:
{
  # enable opengl (headless)

  hardware.opengl.enable = true;
  #hardware.opengl.extraPackages = [ pkgs.mesa.drivers ];
  hardware.opengl.extraPackages = with pkgs; [ mesa.drivers vaapiIntel libvdpau-va-gl vaapiVdpau intel-ocl ];
}