{
  lib,
  pkgs,
  modulesPath,
  ...
}:
{
  imports = [
    (modulesPath + "/profiles/qemu-guest.nix")
  ];

  fileSystems."/" = {
    device = "/dev/disk/by-label/nixos";
    autoResize = true;
    fsType = "ext4";
  };

  # x86_64: bios/grub, aarch64: uefi/systemd-boot
  boot.loader.grub.device = lib.mkIf pkgs.stdenv.hostPlatform.isx86_64 (lib.mkDefault "/dev/vda");
  boot.loader.grub.enable = lib.mkIf pkgs.stdenv.hostPlatform.isAarch64 false;
  boot.loader.systemd-boot.enable = lib.mkIf pkgs.stdenv.hostPlatform.isAarch64 true;
  boot.loader.efi.canTouchEfiVariables = lib.mkIf pkgs.stdenv.hostPlatform.isAarch64 true;
}