Mark Koivuniemi

Now

Building ΔN1, a personal health system that learns what works for one body. Shipping Zone Pedal, a heart-rate-driven trainer app that runs entirely on-device. Writing about AI-assisted engineering, the ways trust gets manufactured, and what it takes to ship in healthcare.

Essays

Resistance Wearing a Lab Coat 2026 Recovery scores can measure something real and still become borrowed doubt. The Convincer 2026 What offshore contractors taught me about the confidence game AI is running. Ground Control to Major Mojo 2026 Thirteen months, 4,000 commits, and a canary named Major Mojo. What AI coding tools actually look like in a production codebase.