Hello! I'm Cosme Valera
I build full stack web applications, from the interface to the deploy, that stay easy to work on. Clean code is the bar, and the same goes for the AI agents I work with: clear roles, clear constraints. Outside work I build side projects, read, and write about what I find worth sharing.
A glimpse at what I've been building.
Recent thoughts on software, architecture, and more.
How I built my own AI learning product alone, from a first prototype to launch: two years, three names and one rabbit.
When to use React, Vue, Zola, Astro, Next or Nuxt; and the cost of picking the wrong tool for the job
Learn about hardware wallets and seed phrase backups, and how to use them to keep your Bitcoin secure in cold storage
