[hueho]

Just as an side note, not relevant to anything in particular, Foundation DB itself is open-source (https://www.foundationdb.org/), but the integration layer used by Deno to make it the backend for Deno KV is not.

Although, from reading the Foundation DB docs and checking the Deno KV API, I honestly suspect it is a thin layer.

Self-hosting FDB is somewhat inscrutable though, so their value add is in not having to handle infrastructure while being backed by FDB.