Hello, I'm back with more questions and clarifications!

This is what I did to install Lemmy:

Install a fresh Linux Mint on an old PC.

Follow the 'official' docker install: https://join-lemmy.org/docs/administration/install_docker.html

I continued with nginx, lets encrypt etc.

I also installed PosgreSQL and added a user Lemmy.

I forward a TCP connection from my fix public IP to the lemmy PC and pointed lemmy.mindoki.com with an A redirection onto that public IP:PORT.

The only 'exotic' thing done was that I added these lines to /home/fediverse/.bashrc :

export LEMMY_CONFIG_LOCATION="/media/fediverse/Storage/lemmy/lemmy.hjson"

EMMY_DATABASE_URL="postgres://lemmy:redacted_password@localhost:5432/lemmy"

. "$HOME/.cargo/env"

I don't think (but not completely sure) that the last line was added by me manually.

Now I can access Lemmy locally on localhost:1236 and everything works (inscription, creations of 'subs' etc).

I added the nginx.conf config file at the end of this message (some lines are commented out to make it work at all).

Almost feels like I should have a very much shorter nginx config file 🙃

Thanks again!

Cheers

EDIT: I messed something up, the server now only answers "Server error", I'll be back later ...