Writing
Notes & essays
Software craftsmanship, AI-augmented engineering, and lessons from the things I build. RSS.
- The Scale Broadcasts. The Agent Decides. My bathroom scale is a generic Xiaomi. It is now wired into every system I run — my server, my own tracker, my AI assistants — and it talks to them by itself. A whole IoT system, for a number on a bathroom floor.
- There Are a Million Fitness Apps. I Built My Own Anyway. A weight trend I can trust, a guided workout player, and a database my AI assistant reads and writes directly. Usable the same evening I started it. What changed isn't the market — it's the cost of building.
- The Code Worked. The Design Was Still Wrong. A frontier model built my feature, the tests passed, it worked — and its design described a world that doesn't exist. What caught it was design knowledge, not tooling. Design still matters.
- Good Code Was Already Optimized for LLMs The principles that make code easy for humans to evolve are the same ones that make it cheap for LLMs to work with.
- Mastering Docker Networking: Solving Bidirectional Communication Between Containers and Host Services A practical guide to enabling seamless communication between containerized applications and host-based services
- The Hidden Cost of Azure SQL Databases: How You Could Lose Your $50 Free Credits Fast How switching an Azure SQL database from Serverless to DTU pricing turned a €50 spending-cap surprise into predictable, boring monthly billing.
- DotNetConf 2022: mi experiencia Crónica de mi primera DotNetConf — las charlas que más me marcaron sobre diseño OO, vertical slice architecture, testing con Playwright y más.