Shoutout to CodesInChaos for suggesting that instead of a mere emulator, should have an actually durable open source implementation – that is what we ended up building with s2-lite! https://news.ycombinator.com/item?id=42487592

And it has the durability of object storage rather than just local. SlateDB actually lets you also use local FS, will experiment with plumbing up the full range of options - right now it's just in-memory or S3-compatible bucket.

> So I'd try so share as much of the frontend code (e.g. the GRPC and REST handlers) as possible between these.

Right on, this is indeed the case. The OpenAPI spec is also now generated off the REST handlers from s2-lite. We are getting rid of gRPC, s2-lite only supports the REST API (+ gRPC-like session protocol over HTTP/2: https://s2.dev/docs/api/records/overview#s2s-spec)