Quote from announcement post:

Morning all,
As the July deadline approaches I’ve been considering working on Sync for Lemmy.
So I thought I’d start by trying to gauge interest and start a general discussion.
Cheers,
Ljdawson

Update #1 from u/ljdawson:

Ok looks like this is happening.
Time for a new subreddit here, more to follow on Lemmy shortly:
https://reddit.com/r/SyncforLemmy

Update #2 from u/ljdawson with an official lemmy community:

… https://lemmy.world/c/syncforlemmy …?

Yup that was me earlier!