/**
 * Systemd Service - Linux user service management
 *
 * Aligned with OpenClaw systemd implementation:
 * - Restart=always with RestartPreventExitStatus=78
 * - StartLimitBurst/StartLimitIntervalSec for rate limiting
 * - KillMode=control-group
 * - network-online.target dependency
 */
import type { GatewayService, GatewayServiceEnv } from './types.js';
export declare function resolveSystemdUserUnitPath(env?: GatewayServiceEnv): string;
export declare function buildSystemdUnit(params: {
    description: string;
    programArguments: string[];
    workingDirectory?: string;
    environment: Record<string, string>;
}): string;
export declare function isSystemdAvailable(): boolean;
export declare function enableLinger(): Promise<void>;
export declare const systemdService: GatewayService;