Copyright?

Never heard of him.

I am just running the normal nginx image with /etc/letsencrypt:/etc/ssl/private as volume. certbot does the rest. If you need help with the exact config just search for relevant keywords, there are tons of good tutorials

If you are using docker just look at the volumes of the containers of the server, the UI and the two databases (one for stuff, one for pictures)

Yes. This is 100% necessary. Otherwise giant communities would be built and probably all on lemmy.ml

Can you explain what’s the difference?