nixos-config/modules/common/hardware.nix

{
  lib,
  config,
  pkgs,
  ...
}:
with lib;
{
  options.hwAccelerationGPU = mkOption {
    type = types.nullOr (
      types.enum [
        "nvidia"
        "intel"
        "amd"
      ]
    );
    default = null;
    example = "nvidia";
    description = ''
      The GPU type.
    '';
  };

  config = {
    boot.kernelParams = mkIf (config.hwAccelerationGPU == "intel") [ "i915.enable_guc=2" ];

    hardware.opengl = {
      enable = config.hwAccelerationGPU != null;
      driSupport = true;
      driSupport32Bit = true;
      extraPackages = with pkgs; [
        (mkIf (config.hwAccelerationGPU == "intel") intel-media-driver)
        (mkIf (config.hwAccelerationGPU == "intel") intel-compute-runtime)
      ];
    };
  };
}