    const err = new Error('ENOSYS: readlink not implemented')
        err.code = 'ENOSYS'
        err.errno = -38
        throw err
      }

      async symlink(target, path) {
        const err = new Error('ENOSYS: symlink not implemented')
        err.code = 'ENOSYS'
        err.errno = -38
        throw err
      }

      async chmod(filepath, mode) {
        // No-op for browser/zip
        return
      }

      async utimes(filepath, atime, mtime) {
        // No-op for browser/zip
        return
     