Writing

Notes from the build.

Occasional writing about the work: decisions we made and why, things that went wrong and what they cost, and the reasoning behind how we build. No listicles, no reposted news.

Illustration: Three lanes model for query routing in hybrid retrieval

Engineering

Hybrid retrieval: route each query to the right retriever

Illustration: $387.5M approved out of Bitget with no key stolen

Security

Bitget hack: how $387 million left without a stolen key

Illustration of a hexagon with five sides labelled think, build, solve, secure and deliver, and a teal sixth side labelled you

About Agneya

Why a hexagon: what the Agneya logo means

Illustration of a chat with a file called Wedding_Card.apk being tapped, and an Android prompt asking to read SMS, access notifications and use accessibility

Security

APK file scam on WhatsApp: what one tap does to your phone

Illustration of a seven-item code audit checklist with two items flagged

Engineering

Code audit checklist: seven things we check before we quote

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