I'm looking for some place where information about installing Lemmy could be found, but also added.
There seems to be some quirks (like if you don't have the mail setup correctly you cannot log in, or the nix sockets are read only etc.)
So instead of asking for help with my specific problem (I managed a couple then got stuck) I think the best way would be to have a sub-lemmy somewhere (for example) where people who want to try to install Lemmy can discuss and help eachothers.
I tried installing Lemmy on my server, but it runs Apache HTTPD on the web port, and I couldn't work out how to integrate Lemmy with that web server. From what I can tell from the NGINX sample config, you need to be able to specify rewrite rules based on the HTTP request method rather than on just the URL, and I just couldn't see how to do that with Apache...
I think I'll try installing kbin instead, this seems to have a more standard setup, similar to Mastodon.
In the Lemmy documentation they clearly say they don't want to support any reverse proxy except nginx, so not really much point posting it to any "official" community.
I've read that email is a federated service, so when you have email@gmail.com you have your "username" and the host.
In here you have !lemmy_support@lemmy.ml which stands for https://lemmy.ml/c/lemmy_support, so you have the community name and where it's hosted.
For a user is similar but starting with @