I don't think it is "focused" on the JSON part of Redis, they have added a lot of commands from Redis, not only JSON. They are also working on storing vectors too for instance.
As for the drivers compatible, if you mean "clients", in our case we use the official Python Redis client with Kvrocks and it works perfectly with the commands we use.
As for the drivers compatible, if you mean "clients", in our case we use the official Python Redis client with Kvrocks and it works perfectly with the commands we use.