hello people of the lemmyverse!

We have recently created the links.rebel.ar instance that is running the latest version of lemmy on docker, hosted on our hardware. But we are having some problems and we are not sure how to solve them. First of all, our instance is not federating. We have enabled that option but still, it doesn't appear. In fact, I'm posting this from another account because from links.rebel.ar I can't see other communities besides ours. On the other hand, is there any user administration tool? I would like, for example, to add a user to the admin team but I don't see how to do it. Thank you very much for everything, lemmy seems to us a very beautiful project :)

P.S.: this text was written with deepl, sorry if there are mistakes, my written English is not good and I resort to this tool.