The tool I can't put down
What began as curiosity is now part of how I think. I use it to prototype at speed, automate the boring eighty percent, and chase ideas in creative coding I couldn't reach alone — a second pair of hands that never sleeps.
01 · About
I'm Kevin Costes Cartes — a software developer specialised in XSLT / XSL-FO document engineering, with a full-stack background. Graduate in Digital Interaction Techniques & Computing at Universitat de Lleida (EPS).
I build with Laravel and Django, design REST APIs, manage databases and automate business processes — from ERP integrations to print-ready document pipelines.
Lately I lean hard on AI as part of how I work and build — using it to prototype faster, automate the tedious parts and explore creative coding I couldn't reach alone. It's the tool I'm most curious about right now.
02 · Selected work
A web platform where users buy servers for video games that are deployed automatically, integrating a custom cryptocurrency — so you pay only for the resources you need. Built around containerisation and an Ethereum testnet for ownership and payments.
Full write-up
A social-network platform, built with the municipality, that brought companies and students together: companies posted real project requests (like building websites) and schools and students delivered them — hands-on experience for students, affordable delivery for companies. A Java desktop app gave admins an interface to manage the database and coordinate everything.
Full write-up
A small game built entirely in ASCII that runs in the command console — a personal project exploring game loops, state and rendering with nothing but text.
03 · Off the clock
The things that pull me away from the screen — and quietly shape everything I build.
What began as curiosity is now part of how I think. I use it to prototype at speed, automate the boring eighty percent, and chase ideas in creative coding I couldn't reach alone — a second pair of hands that never sleeps.
I'm drawn to the geometry of a wheel, the line of a body panel, the obsession with shaving off weight. Half aesthetics, half mechanics — and the reason a rim is hiding inside the hero.
The rhythm, the footwork, the argument over a call. It's the reset button that keeps everything else sharp.
The genre swings from one extreme to the other depending on what I'm building, but it's never silent. The volume is the only thing that stays put.