IDEAS, DECISIONS & LESSONS

Journal

Notes on AI, architecture and building useful products.

2 articles

06 Jun 2026 · 7 min read

AI coding

Why Your Vibe Coding is Costing You a Fortune (And How to Fix It)

Is your Claude Code token usage insanely high? The culprit might be your architecture. Learn how DRY principles and clear system design slash AI token costs.

28 Mar 2026 · 5 min read

Devstral 2: Why Open-Source Just Won the Coding Agent War

Mistral's Devstral 2 achieves 72.2% on SWE-Bench at 7x cheaper than Claude Sonnet. Here's what this means for teams building AI-powered dev tooling in 2026.