Also @pgte is working on y-ipfs-connector, which uses yjs to put CRDTs on IPFS pubsub. This is very new work – @pgte has only had a few days to work on it so far but here is a quick demo of it in action: https://www.youtube.com/watch?v=8xE1MEyZsbo.
You might want to follow the work @daviddias and I are doing with @edsilv and @aescylus for the IIIF (International Image Interoperability Framework) conference in June, our goal is to use Dynamic Content over IPFS to synchronise IIIF document annotations. To track the development of that work, follow this issue https://github.com/ipfs/notes/issues/240