FWIW OT isn't the only algo you can use to implement collaborative editing: * https://medium.com/@raphlinus/towards-a-unified-theory-of-operational-transformat

FWIW OT isn't the only algo you can use to implement collaborative editing: * https://medium.com/@raphlinus/towards-a-unified-theory-of-operational-transformation-and-crdt-70485876f72f https://medium.com/@raphlinus/towards-a-unified-theory-of-op... * https://hal.inria.fr/inria-00071240 https://hal.inria.fr/inria-00071240 If you want a library it exists too: * https://github.com/josephg/ShareJS https://github.com/josephg/ShareJS