* [Nextcloud Office v10.1.0](https://github.com/nextcloud/richdocuments) – Integrates Collabora Online to provide real-time collaborative WYSIWYG editing across many document formats.

* [Collabora Online helm-collabora-onlin...](https://github.com/CollaboraOnline/online) – Collaborative online office suite supporting editing of text documents, spreadsheets, and presentations in modern browsers.