Zero's next-gen IVM engine runs in a single DO, live-querying a 100GiB R2 database

threepointone · x · 2026-10-16

@tantaman demonstrates how fast and slim Zero's incremental view maintenance (IVM) engine can get by porting it to an extremely constrained runtime: a single Durable Object.

In the demo, the engine queries a 100GiB database stored in R2 while maintaining live queries. It shows IVM — usually requiring dedicated infrastructure — can be squeezed into a tiny edge runtime, relevant for real-time sync and query workloads.

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