Need help for jitsi meet install



I have to admit that the last hour was painfully bad for me when I was trying to install jitsi meet on my new debian server.
Yes, I am new to coding and all therefore I’d like to ask for help.
I need a human contact, please! All code-copy-paste business didn’t work for me, even though the guides are very well done.

Can you, please give me a hand?

Best regards,