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

{
  system.build.nvmeImage = import "${modulesPath}/../lib/make-disk-image.nix" {
    inherit config lib pkgs;
    diskSize = 8*1024; # megabytes
    # TODO: zstd
    format = "raw"; # one of qcow2, qcow2-compressed, vdi, vpc, raw.
    installBootLoader = true;
    partitionTableType = "efi";
    configFile = pkgs.writeText "configuration.nix" ''
      {
        imports = [ <./machine-config.nix> ];
      }
    '';
  };

  boot.growPartition = true;
  boot.initrd.kernelModules = [ "nvme" ];
  /** /
  boot.loader.grub.efiSupport = true;
  boot.loader.grub.efiInstallAsRemovable = true;
  boot.loader.grub.device = "nodev";
  /**/

  fileSystems."/boot" = { device = "/dev/nvme0n1p1"; fsType = "vfat"; };
  fileSystems."/"     = { device = "/dev/nvme0n1p2"; fsType = "ext4"; };

}