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

  boot = {
    growPartition = true;
    kernelParams = [ "console=tty1" ];
    loader.grub = {
      enable = true;
      device = "/dev/vda";
      extraConfig = ''
        serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1
        terminal_output console serial
        terminal_input console serial
      '';
    };
  };

  systemd.services."serial-getty@tty1".enable = true;
}