Communities in Lemmy/Mbin are not federated by default. So when you create a new community, it will only be available to your instance. At least 1 person from all other instances must follow it in order to make it available. This tool does that. It follows your community from all remote instances until at least 1 other person follows it.
This is so useful, thank you for sharing!
Turns out !latin@lemm.ee isn’t federated with many instances.
We also weren’t federated with lemmy.autism.place, so much potential users ;)
edit: noooooo 😭