> whoami — Visual Designer who crossed into code

I'm a Chrome extension developer and visual designer based in Girona, Spain. I spent years running Projekta2 Creative Studio — immersive web experiences where design and engineering were indistinguishable. That background shapes everything I ship.

I build tools for the third week of use — when the novelty is gone and all that's left is whether it saves you time.

What makes my tools different:

Principle	What it means
💳 One-time payment	You pay once. You own it forever. No subscription tax for features that shouldn't recur.
🔑 BYOK — Bring Your Own Key	Your API keys never leave your machine. Zero backend proxy. Zero data collection.
🌍 Bilingual from day one	EN/ES built into the i18n architecture — not translated after the fact.
🚫 Zero telemetry	Not even error reporting unless you explicitly opt in.
🌗 Real dark mode	Every extension ships with dark mode from v1. Not a checkbox — a design decision.

> ls ~/products — 3 Chrome extensions in production

All extensions share the same philosophy: one-time payment, 100% local processing, bilingual UX (EN/ES), no telemetry, no dark patterns.

  

TabCost Pro    PR Focus Pro  

ChainTrace  

> cat ~/open-source — Free tools for the developer community

Two open-source projects built alongside the commercial extensions. MIT licensed. Contributions welcome. No strings attached.

🎨 PR Review Canvas — free, open-source code review kit for developers  

📋 Build Logs — real engineering decisions from indie products  

What's inside PR Review Canvas — click to expand

A complete, opinionated code review kit covering the full lifecycle:

• 51-item interactive checklist — with a live "Review Readiness" score that updates as you check items
• PR description templates — basic and advanced, ready to copy into GitHub
• Reviewer guides — for beginners, for senior engineers, for giving feedback that doesn't start a flame war
• Annotated examples — real good and bad PRs, annotated with what works and what doesn't
• Anti-patterns reference — the 12 code review anti-patterns that silently slow down teams
• Notion + Obsidian import — copy the checklist into your own PKM system

MIT licensed. No account required. No email capture. Just open it and use it.

→ Try it live · View on GitHub · Contribute

> tail -f ~/writing — Technical writing on dev.to

Real decisions. Real trade-offs. Real products in production. No "10 tips" articles.

	Article	Reads well if you…
🟢	Show HN: AI Chrome extension with zero backend cost — BYOK architecture	...if you want to see the HN discussion
🏗️	I built an AI Chrome extension with zero backend cost — exact BYOK architecture	…build Chrome extensions and want AI without a backend
📊	Why my Chrome extension uses a hybrid AI risk score instead of pure AI sorting	…build with AI and care about determinism
🔑	I went BYOK instead of running my own AI backend — the architecture decision	…think about privacy-first AI product design
⏱	I was spending 2 hours a day triaging GitHub PRs — so I built an AI extension	…manage multiple repos and feel the pain
🎨	The PR Review Canvas — a free interactive checklist for better code reviews	…want a code review process that actually sticks
🧭	5 UX principles for developer tools that developers actually use	…design tools for technical audiences
⚙️	MV2 → MV3 migration — what broke, how I fixed it, what I'd do differently	…are migrating or building a Chrome extension
💳	Freemium vs. one-time vs. subscription — how I chose the pricing model	…are pricing an indie product for the first time

> systemctl status --now — What I'm working on right now

> cat ~/users.feedback — What people are saying

Building in public since May 2026 — first testimonials incoming. Using PR Focus Pro or PR Review Canvas? Share your experience →

> lspci | grep stack — Tech I build with

 

> ssh hire@projekta2.com — Work together

Clients — All three extensions are live and free to install. The best way to evaluate my work is to use it. Custom Chrome extension development available on request — bring a problem, I'll build the tool. Employers / freelance — Unusual combination in the market: production-level visual design + working knowledge of Chrome Extension APIs, AI integration (BYOK, prompt engineering), DOM extraction, Google Sheets API, and JavaScript from scratch. I care about UX that doesn't need a tutorial. Open-source community — PR Review Canvas and Build Logs are both actively maintained and open to contributions. If you want to make your first open-source contribution, there are good first issues waiting.

> git log --all --oneline --author=community

Contributions to PR Review Canvas are open and welcome. Your avatar could appear here.

First external contributor = instant feature in Build Logs.

_{Building in public · Girona, Spain · May 2026 → present
⭐ Star PR Review Canvas · Join the Review Swap · Read the articles}