arnau diaz

Eight months ago I started dumping everything I read into Apple Notes.

If my development environment needs the internet to work, that's a dependency bug.

Most integration tests can be load tests.

Early in my career I worked with a Google team on an open-source project.

Tools When I use a tool, I want the tool to care about me.

What I'm aiming for: make test One test harness everywhere.

I was upgrading a project to Spring Boot 4.

On Simulacra and Simulation we see how easily we mistake motion for meaning.

I've worked on hard problems: implemented AI papers, optimized backend services, troubleshot networking issues in production, databases.

In this post we explore how starting from resources (CPU, RAM, DISK, NETWORK) can drive clearer, simpler and more robust system design — rather than beginning with features, frameworks or fancy architecture.