{ config, lib, modulesPath, ... }:
{
  # Good defaults for cloud VMs
  imports = [ (modulesPath + "/profiles/qemu-guest.nix") ];

  # Placeholder root FS (you MUST replace this on real machines)
  fileSystems."/" = {
    device = "/dev/disk/by-label/nixos";
    fsType = "ext4";
  };

  # Placeholder bootloader target (adjust /dev/vda vs /dev/sda depending on provider)
  boot.loader.grub.enable = true;
  boot.loader.grub.devices = [ "/dev/vda" ];

  networking.useDHCP = lib.mkDefault true;
}