What's this obsession with SQLite? For all intents and purposes, what they'd accomplished is effectively a Type 2 table with extra steps. CRDT is totally overkill in this situation. You can implement this in Postgres easily with very little changes to your access patterns... DISTINCT ON. Maybe this kind of "solution" is impressive for Rust programmers, I'm not sure what's the deal exactly, but all it tells me is Fly ought to hire actual networking professionals, maybe even compute-in-network guys with FPGA experience like everyone else, and develop their own routers that way—if only to learn more about networking.