{ lib, ... }:
{
  options.homelab.host = {
    tier = lib.mkOption {
      type = lib.types.enum [ "test" "prod" ];
      default = "prod";
      description = "Deployment tier - controls which credentials can deploy to this host";
    };

    priority = lib.mkOption {
      type = lib.types.enum [ "high" "low" ];
      default = "high";
      description = "Alerting priority - low priority hosts have relaxed thresholds";
    };

    role = lib.mkOption {
      type = lib.types.nullOr lib.types.str;
      default = null;
      description = "Primary role of this host (dns, database, monitoring, etc.)";
    };

    labels = lib.mkOption {
      type = lib.types.attrsOf lib.types.str;
      default = { };
      description = "Additional free-form labels (e.g., dns_role = 'primary')";
    };
  };
}