Code

Journal

1. Code

   req.user no existe, tú nomás rezas

   Llevo años escribiendo esta línea: Compila. TypeScript contento. Y es una mentira con tipo. Esa propiedad existe nomás si algún middleware corrió antes. ¿Cuál?…
2. Code

   I Built a Framework on Express. Then I Had to Rebuild It From Scratch.

   A middleware chain is a dependency graph with the edges deleted. I rebuilt my framework around those missing edges.
3. Code

   Processing 1M Chess Games in 15 Seconds with Rust

   I train self-supervised models on chess game data. My Python pipeline using python-chess took 25 minutes to parse and tokenize 1M games from Lichess…
4. Code

   What’s New in Expressive Tea 2.0: The Full Breakdown

   DEEP DIVE • @expressive-tea/core v2.0 • March 2026 What’s New in Expressive Tea 2.0: The Full Breakdown Everything that changed, why it changed, and…
5. Code

   Expressive Tea 2.0 Is Here

   RELEASE • @expressive-tea/core v2.0 • March 2026 Expressive Tea 2.0 Is Here A modern TypeScript-first framework for building scalable Node.js applications After months of…
6. Code

   Ailed: A Chess Engine That Feels

   I published my first research paper — a chess engine with an emotional state that evolves during games and changes how it plays. An…