Nextcloud 19 now has Community Document Server and **[ONLYOFFICE](https://www.onlyoffice.com/)** apps integrated which allows self-hosted instances of docs/sheets/slides. Users are able to edit documents in real time. Thanks @k3tan172 and @plutocrat
- name:Open-Xchange
url:https://www.open-xchange.com
eyes:null
text:|
A secure hosted email and productivity platform, designed for providers of all sizes to offer their customers email, calendar, storage, encryption and more.