Welcome! Glad to see more folks joining the open source FGA/Zanzibar space! Making synchronization first-class is a great area to explore. It'd be nice to connect and chat about all things Zanzibar, not just data syncing!
The Authzed team[0] built Postgres syncing with the SpiceDB Postgres Connector[1] to explore syncing, but we never got it into a place that the community could agree upon. Users in the SpiceDB community are using technologies like CDC external to SpiceDB successfully, but there are many foot-guns to syncing because it can violate data consistency. Is there documentation on how Permify handles consistency (e.g. the Zookies/The New Enemy Problem from the Zanzibar paper)?