Different storage backend instead of Kafka

[GSam]

Hi,

Just wondering how tied schema registry is to being stored directly on Kafka. It would have benefits for the redundancy / availability of schema registry to not necessarily tied to the overall current state of the Kafka cluster. Schemas can have different data governance requirements which are hard to balance against the overall cluster.

I did briefly take a look, and it seemed like it was tied to specific consumer group behaviours and such but it wasn't clear. If someone were to implement a different backend, any ideas where they would start?

Thanks