Create an account with Matrix without a Uniaccount
If you do not have a university account, you can create an account directly at matrix.org.
This process does not run via the University of Kassel server.
You can find detailed instructions on how to register on the Matrix [external] page.
You can then add yourself to the relevant rooms.
Go-Link of this page: www.uni-kassel.de/go/matrix-ohneUniaccount