I just got one set up last night over at ani.social (shameless plug) but federation is whack. Upvotes and comments from other instances aren't syncing properly (they don't sync at all). I don't know if it's just me (or Cloudflare?) but I saw a recent issue on it on Github.

Anyway, I think lemmy-ansible is the preferred way to get it running now. But I'm not really into the idea of an Ansible playbook and I prefer installing it myself with Docker. The current instructions for installing via Docker are broken however. Instead, I just used the docker-compose, lemmy.hjson, and nginx.conf files from the lemmy-ansible repo and set it up myself.

Everything works so far but again, federation is whack. If anyone knows how to fix it, please let me know.