Works with IPFS if you use Pubsub, cryptographic capabilities, and CRDTs :) Check out PeerPad: https://peerpad.net https://peerpad.net edit: what I also meant

Works with IPFS if you use Pubsub, cryptographic capabilities, and CRDTs :) Check out PeerPad: https://peerpad.net https://peerpad.net edit: what I also meant to say is, a chat room doesn't need computation (although there certainly use cases that do)