Doesn’t seem like it uses ActivityPub, still interesting, and open source
In Nextcloud, user’s Federated Cloud ID works similar to an email address or a Mastodon handle, allowing them to exchange data across servers: share files and and collaborate on documents, communicate in group chats and make audio and video calls.
Federated tools available in Nextcloud:
- Federated file sharing
- Share documents and media to users in other Nextcloud Hub instances for viewing, editing and collaboration.
- Federated chatting
- Create group chats with users from different servers and use many essential chat tools.
- Federated calls
- Make audio and video calls with Nextcloud Talk among users from different servers.
What’s the status on that? To my understanding it has lagged or stalled.