Does anyone have a #selfhosted service they find useful for, like, coordinating neighborhood groups?

My wife and I host a neighborly potluck every few weeks, and I'd love to have a way to keep in touch with our neighbors, coordinate events, and chat in a space that's not a bunch of different group texts. I'm watching @Bonfire's work on federated groups closely, and suspect their "Community" flavor may be precisely what I'm looking for when it's ready, but I'm also curious if there are other offerings in this space.