It is! - The UCS version of Nextcloud becomes published after most issues have been solved and then will be published by Nextcloud for UCS.
Nextcloud for Univention always is in a docker container. The Univention server needs to be installed one time before Nextcloud and frequently be updated. Nextcloud is an app from Univention app-center:
Please find
for more information to find config.php
Don’t forget a system backup previous to do any changes.