How Turso made connections to SQLite databases 575x faster

Is this the thing which makes running database workloads on FaaS infrastructure even more possible? Is anybody using this approach in production actually?

Because to me this seems like an amazing idea and massive potential in savings on compute and memory.

From what I understand, we already can create an unikernel image with some server app and SQLite database file. Then we could put this image on a few vm with firecracker and proxy agent installed via some orchestrator which would allow these images to be run on demand in HA mode in sub 100ms [1].

Note sure how these statistics change when the image grows to 100s MBs and how DB replication would look like, but this would be really nice.

[1] https://unikraft.org/docs/concepts/performance