{ config, lib, pkgs, modulesPath, ... }:

{
  # Imports
  imports = [
    (modulesPath + "/installer/scan/not-detected.nix")
  ];

  # hardware general
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";

  # boot
  boot.kernelPackages = pkgs.linuxPackages_latest;
  boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "usb_storage" "sd_mod" "sdhci_pci" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  # luks
  boot.initrd.luks.devices = {
    # drive1: swap
    "luks-UUID-1B" = {
      device = "/dev/disk/by-uuid/UUID-1B";
    };
    # drive1: root
    "luks-UUID-1C" = {
      device = "/dev/disk/by-uuid/UUID-1C";
    };
    # drive2: data
    "luks-UUID-2A" = {
      device = "/dev/disk/by-uuid/UUID-2A";
      allowDiscards = true;
      #keyFile = "/crypto_keyfile.bin";
    };
  };

  # swap
  swapDevices = [ { device = "/dev/mapper/luks-UUID-1B"; } ];

  # file system
  fileSystems = {
    # drive1: boot
    "/boot" = {
      device = "/dev/disk/by-uuid/UUID-1A";
      fsType = "vfat";
      options = [ "fmask=0077" "dmask=0077" ];
    };
    # drive1: root
    "/" = {
      device = "/dev/mapper/UUID-1C";
      fsType = "ext4";
    };
    # drive2: data
    "/data" = {
      device = "/dev/mapper/luks-UUID-2A";
      fsType = "ext4";
    };
  };

  # nvidia
  services.xserver.videoDrivers = ["nvidia"];
  hardware.nvidia = {
    modesetting.enable = true;
    open = true;
    nvidiaSettings = true;
    package = config.boot.kernelPackages.nvidiaPackages.stable;
  };

  # opengl
  hardware.graphics.enable = true;

  # nvtop
  environment.systemPackages = with pkgs; [
    #nvtopPackages.amd
    #nvtopPackages.intel
    nvtopPackages.nvidia
  ];

  # nvidia twm environment variables
  environment.sessionVariables = {
    LIBVA_DRIVER_NAME = "nvidia";
    __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    GBM_BACKEND = "nvidia-drm";
  };

}