http://www.asustor.com/apps/app_detail?id=597
Description
Nextcloud is an open source, self-hosted file sync and share and communication app platform. Access & sync your files, contacts, calendars & communicate and collaborate across your devices. You decide what happens with your data, where it is and who can access it!
You may check on the administration manual from official site:
https://docs.nextcloud.com/server/10/ad ... index.html