Neat! How does this differ from KSQL?

It was inspired by KSQL! But really KSQL isn't a database, it just gives you some sql processing. Nobody stands up Kafka and KSQL when they want database of any kind.

The difference is that I'm building a database and exposing the WAL to the application layer. What that means is that you can connect your legacy DB application and have it issuing insert and update queries which are now native messages on a distributed message queue. Suddenly you gain a conokete audit trail for your entities without brittle tables and triggers to track this. Then instead of hooking up Qlik or devezium, you can just stand up another instance of the DB, propagate the realtime WAL and you've got streaming analytics - or whatever new application you want.