{...}: {
  # Dedicated NVIDIA GPU (single discrete card, no hybrid/PRIME).
  # For Intel+NVIDIA laptops (e.g. the T480), use gpuNvidiaPrime instead.
  flake.nixosModules.gpuNvidia = {
    config,
    pkgs,
    ...
  }: {
    services.xserver.videoDrivers = ["nvidia"];

    hardware.graphics = {
      enable = true;
      enable32Bit = true;
    };

    hardware.nvidia = {
      modesetting.enable = true;
      # Proprietary kernel modules. Set to true only for Turing+ (RTX 20xx and
      # newer) where the open modules are well supported.
      open = false;
      nvidiaSettings = true;
      # Fixes suspend/resume corruption on many setups.
      powerManagement.enable = true;
      package = config.boot.kernelPackages.nvidiaPackages.stable;
    };

    environment.systemPackages = with pkgs; [
      vulkan-tools
    ];
  };
}