{isHM ? null, ...}: {
  assertions = [
    {
      assertion = isHM != null;
      message = "The \"home-manager\" flag isHM is required.";
    }
  ];
  imports = [
    ./bin/nix-scripts.nix
    ./desktop/de
    ./desktop/dm
    ./hardware/bluetooth.nix
    ./hardware/sound.nix
    ./hardware/yubikey.nix
    ./networking/wireguard
    ./services/borg-server.nix
    ./services/nextcloud-instance.nix
    ./services/virt-manager.nix
  ];
}