{
  config,
  lib,
  pkgs,
  modulesPath,
  ...
}:
{
  imports = [
    /etc/nixos/hardware-configuration.nix
    ./mennos-server/zfs.nix
  ];
  networking.hostName = "mennos-server";
  networking.hostId = "64519940";

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # Load nvidia driver for Xorg and Wayland
  services.xserver.videoDrivers = [ "nvidia" ];

  # Enable oepngl and 32-bit support
  hardware.opengl = {
    enable = true;
    driSupport = true;
    driSupport32Bit = true;
  };

  # nvtop, a system monitor for GPUs
  environment.systemPackages = with pkgs; [ nvtopPackages.nvidia ];

  # Enable NVIDIA Docker support
  # test with: $ docker run --rm -it --device=nvidia.com/gpu=all ubuntu:latest nvidia-smi
  hardware.nvidia-container-toolkit.enable = true;
  virtualisation.docker = {
    enable = true;
  };

  hardware.nvidia = {
    # Modesetting is required.
    modesetting.enable = true;

    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
    # Enable this if you have graphical corruption issues or application crashes after waking
    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead 
    # of just the bare essentials.
    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+
    # Currently alpha-quality/buggy, so false is currently the recommended setting.
    open = false;

    # Enable the Nvidia settings menu,
    # accessible via `nvidia-settings`.
    nvidiaSettings = true;

    # Optionally, you may need to select the appropriate driver version for your specific GPU.
    package = config.boot.kernelPackages.nvidiaPackages.unstable;
  };
}