https://docs.trr379.de/references/services/calendars/index.htmlTRR379 uses a dedicated CalDAV server at https://cal.trr379.de. This service can be used to host any number of online calendars. Individual calendars can be configured to be publicly accessible, or only for internal (authenticated) consumption. Internal calendars Any number of non-public calendars can be created and shared with specific audiences. This can be useful to coordinate data acquisition sessions, organize room bookings, or schedule slots for internal meetings and events.Hugoen-us