Nextcloud [1] (Federated Groupware) has the concept of circles [2], but yes, that's probably not what you meant with social network ;-) [1]: https://nextcloud.

Nextcloud [1] (Federated Groupware) has the concept of circles [2], but yes, that's probably not what you meant with social network ;-) [1]: https://nextcloud.com https://nextcloud.com [2]: https://apps.nextcloud.com/apps/circles https://apps.nextcloud.com/apps/circles