Andreas Grupp

That is indeed the situation at our Nextcloud. Due to data protection regulations we have restricted the sharing to groups where the users are part of. Your suggested workaround works....

If someone is installing the BBB app in Nextcloud, it is one of the apps that allows to restrict the usage / the availability of this app only to specified...

I totally agree to that. Username and password only is dangerous for a service like Cryptpad. TOTP would be great!

Yes, but the following scenarios would be fine anyway: 1. The initiator of a voting could, if optionally added his/her mail-address, be informed about new votes. 2. Voters can also...