Engineering notes from building AZ-Five — lakehouse architecture, honest AI features, one system instead of five vendors.https://az-five.com/https://az-five.com/blog/ai-text-cards-honest-numbers/https://az-five.com/blog/ai-text-cards-honest-numbers/A narrative dashboard card is only useful if its numbers are true. The design rule that makes that hold — the engine computes, the model narrates.Tue, 08 Sep 2026 00:00:00 GMThttps://az-five.com/blog/datafusion-delta-not-clickhouse/https://az-five.com/blog/datafusion-delta-not-clickhouse/The architectural bet behind the platform — one open store queried in place, instead of a warehouse plus an OLAP copy — and what it took to make that fast.Tue, 08 Sep 2026 00:00:00 GMT