{ config, pkgs, ... }:

{
  # NVIDIA GPU driver. `open = false` uses the proprietary blob; modesetting
  # enables modeset + nvidia-drm for proper Wayland support.
  hardware.nvidia = {
    modesetting.enable = true;
    powerManagement.enable = false;
    open = false;
    nvidiaSettings = true;
    package = config.boot.kernelPackages.nvidiaPackages.latest;
  };

  environment.systemPackages = with pkgs; [
    # VA-API translation layer so NVIDIA can accelerate video decode.
    nvidia-vaapi-driver
  ];

  environment.sessionVariables = {
    LIBVA_DRIVER_NAME = "nvidia";
    __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    NIXOS_OZONE_WL = "1";
  };
}