{ ... }:
{
  imports = [ ./harness-base.nix ];

  # Manager role: the `systemd.services.hive-ag3nt` unit plus
  # the manager-only forge defaults (`keepSubscriptions = false`,
  # `skipNotifyReasons = [ "subscribed" "participating" ]`) live in
  # `harness-base.nix` under `lib.mkIf (config.hyperhive.role ==
  # "manager")`. This file is the bare entry-point referenced from
  # `flake.nix` (`nixosConfigurations.ruth`) and the meta-flake's
  # `applied/ruth/flake.nix`. HIVE_PORT / HIVE_LABEL are injected by
  # the meta-flake at deploy time and have manager-only standalone-eval
  # fallbacks in `harness-base.nix`.
  hyperhive.role = "manager";
}