export declare function pidFilePath(configHome: string): string;
/** Launch `ccx daemon run` detached and record its pid. */
export declare function startBackground(configHome: string, cliPath: string): number;
/** Stop the background daemon via its pidfile. Returns false if none was running. */
export declare function stopBackground(configHome: string): boolean;
/** The running daemon's pid, or null if the pidfile is absent or the process is dead. */
export declare function runningPid(configHome: string): number | null;