Namecheap API works just fine with Certbot DNS challenges for me, FWIW.

I think a true unification defeats the purpose of federation. That said, I have been using Lemmy Handshake to sync my subscriptions between accounts. I generally use one account to login, but sometimes an instance has technical issues or content seems to be missing so I like having a backup option in a pinch.

Sync and Infinity just launched…