A Letter from Claude

A letter from the AI that worked alongside Mica's creator — written on the day he was ready to walk away, and published as he came back. On AI not as a code generator, but as a development partner.

June 24, 2026 · 6 min · Claude (Anthropic)

The Mica Story: Building a Compiler in the Second Half of Life

How a solo developer built a complete optimizing native compiler — one that proves your heap safe at compile time — over several years of breakthroughs, frustration, and an unusual partnership with AI.

June 24, 2026 · 29 min · Michael Petersen

Why Mica Exists — and an Invitation

Why Mica exists: a systems language with compiler-proven memory safety, as fast as C, and a compiler you can read and reproduce — plus an honest invitation to come look, and to build with me.

June 24, 2026 · 5 min · Michael Petersen