I happened to find this android app called Reservator on F-Droid
Displays the availability status of meeting rooms along with the free/busy-time. Requires a Google-Account for schedules.
The github repo is here
I was wondering if something similar could be done using Nextcloud calendars…
Someone could either contact them and verify if they include support for Nextcloud, or build an app with similar functionality that interacts with Nextcloud
Honestly this is not a need that I have, so I will not contact the creators of Reservator.
Yet I found this info interesting enough to share it here.
Hope it will find some use
P.S.: up to now the app needs a paid Google apps for business or Google apps for education account
A simple free Google account is not enough.