Mobile access to calendar
From https://open.greenhost.net/openappstack/openappstack/-/merge_requests/467/diffs#note_27014:
Have you considered people trying to add the calendar to their phone or other caldav device? I just tried with Thunderbird and:
For the Nextcloud admin user, it worked without problems 👍 For the oas-maarten SSO user it did not work, because I needed to provide a password.
Do you know what that user should do? Ideally we add that to the documentation