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jdjuan/README.md

Hi, I'm Juan 👋. I build useful tools for everyday problems. Software engineer, entrepreneur, speaker and writer.

My website   /   Products   /   Articles   /   Say hello

Hi, I'm Juan 👋

I'm a software engineer and entrepreneur. I turn everyday frustrations into tools, experiment with AI, and write about what I learn along the way.

I like simple products, clear explanations, and taking an idea all the way to something people can actually use.

Open source, made practical

A local home for your installed Codex skills. Browse instructions, organize your collection, and back it up with GitHub.

Python · Local-first · Developer tools

Explore the code

Make the browser feel more like yours. Hide distracting feeds, save media, and match Gmail and LinkedIn to your system theme.

JavaScript · Chrome extension · Everyday tools

Explore the code

Things you can use

Some problems I've turned into products:

Product The idea
💬 Parlai Learn languages through conversations on WhatsApp.
🗣️ TandemGPT Practice a language with an AI partner.
🔎 Full Picture Explore information about public figures.
🎯 Nine Questions Challenge your gut feeling.

More of my projects

Notes from the workshop

I write about building with AI, thinking clearly, and figuring things out.


Away from the keyboard: chess, improv, running, and the occasional Wikipedia rabbit hole.

Have an idea, a question, or something you're building? I'd love to hear about it.

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  1. myskills myskills Public

    MySkills — browse and organize your agent skills locally

    Python 1

  2. SuperChrome SuperChrome Public

    Personal Chrome toolkit: video downloads, Facebook reel details, and popup protection.

    JavaScript