Kent Beck writes about software design, testing and programming technique, framed as ways to improve human relationships among developers. Issues mix practical refactoring and testing advice with reflections on working with AI coding tools.

Gergely Orosz covers Big Tech and startups through the lens of senior engineers and engineering leaders, with reported detail on company practices and incidents. The sampled issues cover Anthropic's custom source control, internal vibe-coding tools at Ramp and Stripe, and the Firebase outage.

Weekly lessons that explain one AI engineering concept at a time, such as transformer internals, LLM inference serving and agent-based bug hunting. Each issue pairs concrete numbers and worked examples with a paid script readers can run themselves.

A newsletter covering Big Tech and startups from the inside, with original reporting, data gathered from engineering leaders, industry news roundups and deep-dive interviews. Readers get insight into how software companies work, including AI tooling spend, developer infrastructure and industry trends.