What does presence use for its persistence layer? For its gossip protocol? Are you using plumtree, a fork, or something home rolled? Are you aware of Christophe

What does presence use for its persistence layer? For its gossip protocol? Are you using plumtree, a fork, or something home rolled? Are you aware of Christopher's work with Lasp and the delta-CRDTs? This sounds great and it's very idiomatic to OTP, it's like a web app VM.