hi ... i need to install nextcloud (cloud.midomain.com) + WordPress (mydomain.com) + jitsi (meet.midomain.com) with nginx. I followed the instructions in riegers.in for nextcloud (I am a novice and there are concepts that I cannot understand), but I was not able to install wp and jitsi afterwards. Any recommendation or tutorial that I can follow. I have a server with Ubuntu 20.04. Thank you very much