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E-commerce Architect · VTEX · AI

Curiosity as engine, purpose as compass.

I design e-commerce solutions and explore how AI creates code that lives, adapts and evolves on the internet.

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Yohan Arroyave

Latest writing

From a Google Sheet to my own expenses app in 8 days

From a Google Sheet to my own expenses app in 8 days

How I replaced my monthly spreadsheet ritual with a PWA on Cloudflare's free tier: push notifications with actions, an AI receipt scanner, and the spec → plan → TDD formula I learned building pkmntools.
From a PDF generator to a portal in 5 languages: six months of vibecoding pkmntools

From a PDF generator to a portal in 5 languages: six months of vibecoding pkmntools

The honest story of how a solutions architect (not a professional developer) built pkmntools.com with AI at his side: the technologies, the mistakes, the real metrics, and why I ended up migrating everything to my own VPS.