I am building a DB based on JSON OT for collaborative apps

I am starting to build a NoSQL database built for collaborative apps. Collaborative apps have a huge versioning issue and current databases don’t implement that well I believe.

The idea is a DB based on JSON Operational Transformation. Updates are made based on operations with a document version. Plus I was thinking of having subscriptions like RethinkDB.

Does that sounds like something helpful? Would love any feedback!