The C in CRDT means the order doesn't matter, which means you can just put all the gossiped changes into a big bag of changes and if everyone knows the same changes, they have the same final document, so a simple gossip protocol that just shares unshared data blobs will eventually synchronize the document. If order matters, it's not a CRDT. This one isn't a CRDT because the order matters if two clients insert text at the same position.