I'm very intrigued by Google Zanzibar and so far SpiceDB is my fav. I have many questions, and would love to see this project evolving. One of the things that I'm thinking is why not make a db with authz built-in? Instead of making a graphdb on top of a db and create 2 decoupled things with different languages that are 100% logically inter-connected, why not just make 1?