{ ... }:

{
  swapDevices = [];

  hardware = {
    graphics = {
      enable = true;
      extraPackages = with pkgs; [
        intel-media-driver
        intel-ocl
        intel-vaapi-driver
      ];
    };
    nvidia = {
      # Modesetting is required.
      modesetting.enable = true;
      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
      powerManagement.enable = false;
      # Fine-grained power management. Turns off GPU when not in use.
      # Experimental and only works on modern Nvidia GPUs (Turing or newer).
      powerManagement.finegrained = false;
      # Use the NVidia open source kernel module (not to be confused with the
      # independent third-party "nouveau" open source driver).
      # Support is limited to the Turing and later architectures. Full list of
      # supported GPUs is at:
      # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
      # Only available from driver 515.43.04+
      # Do not disable this unless your GPU is unsupported or if you have a good reason to.
      open = true;
      # Enable the Nvidia settings menu,
      # accessible via `nvidia-settings`.
      nvidiaSettings = false;
      # Update for NVIDA GPU headless mode, i.e. nvidia-persistenced.
      # It ensures all GPUs stay awake even during headless mode.
      nvidiaPersistenced = true;
      # Optionally, you may need to select the appropriate driver version for your specific GPU.
      package = config.boot.kernelPackages.nvidiaPackages.stable;
      #package = config.boot.kernelPackages.nvidiaPackages.mkDriver {
      #  version = "565.57.01";
      #  sha256_64bit = "sha256-8pMskvrdQ8WyNBvkU/xPc/CtcYXCa7ekP73oGuKfH+M=";
      #  sha256_aarch64 = "sha256-s8ZAVKvRNXpjxRYqM3E5oss5FdqW+tv1qQC2pDjfG+s=";
      #  openSha256 = "sha256-/32Zf0dKrofTmPZ3Ratw4vDM7B+OgpC4p7s+RHUjCrg=";
      #  settingsSha256 = "sha256-kQsvDgnxis9ANFmwIwB7HX5MkIAcpEEAHc8IBOLdXvk=";
      #  persistencedSha256 = "sha256-E2J2wYYyRu7Kc3MMZz/8ZIemcZg68rkzvqEwFAL3fFs=";
      #};
    };
  };
}