In Synology device, cannot watch file change

[Allure-eve]

code like this，it works in virtual machine(windows&centos 7) but doesnt works on Synology device(Only @eaDir can be watch) any solution?

export function startWatcher() {
  const watch_path = PlatformTools.pathNormalize(env.WATCHER_PATH)

  print.info(`watch_path=>${watch_path}`)
  const watcher = chokidar.watch(watch_path, {
    persistent: true,
    awaitWriteFinish: true,
    depth: 3,
  })
  watcher.on('add', onAddFileHandler)
}