/**
 * Returns true if we're on macOS and can use the native file picker.
 */
export declare function canUseFilePicker(): boolean;
/**
 * Open the macOS native file picker dialog filtered to .p8 files.
 * Returns the selected file path, or null if the user cancelled.
 * Non-blocking — uses async execFile so Ink spinners keep animating.
 */
export declare function openFilePicker(): Promise<string | null>;
export declare function openPackageJsonPicker(): Promise<string | null>;