Matrix room

All those who have a UdK account, log in here *:

https://medienhaus.udk-berlin.de/classroom
 
and subsequently join the course (#edu-psyche) room:
 
https://medienhaus.udk-berlin.de/classroom/#/room/#edu-psyche:medienhaus.udk-berlin.de

(or install matrix client apps like Element or Fluffychat and put "medienhaus.udk-berlin.de" as homeserver)