nixos/config/intel.nix

{
  config,
  pkgs,
  ...
}: {
  # opengl and graphics settings
  # https://nixos.wiki/wiki/Accelerated_Video_Playback
  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver # LIBVA_DRIVER_NAME=iHD
      libvdpau-va-gl
    ];
  };
  environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; };
}