Essays and field notes on AI, software engineering, design, and the craft of building product teams that ship. Written by the engineers doing the work.

The Stanford AI Index says agents crossed the production threshold. The CISO survey in the same week says nobody's ready for what that means.

A walk through seven decades of AI — from symbolic rule engines to the transformer models rewriting how software gets built.

What changed, what stayed, and the handful of patterns that separate apps that feel at home on iOS from apps that merely run on it.

A practical guide to testing your code from the inside out — what coverage actually means, which techniques pay off, and when to reach for something else.

Six hours of overlap isn't a perk — it's the threshold between a team that ships and a team that writes status updates.

The review comments that build engineers up and the ones that drive them to other teams. A short guide to the difference.