Learning by doing for 40 years

It started with Maths. Then code, taught to myself. Then consulting, energy, data, AI — 20 years navigating between business and technology at places like Engie, where I currently lead Digital & Data for Large Customers.

But titles don’t tell the whole story. What drives me is curiosity — and the need to actually build things to understand them.

How does the brain work? Take a neuroscience course, then build an app. Chess? Hours of YouTube, 10,000 games. AI? Get Claude Code and start building. IPAs? A website with a terrible pun for a name. And that’s just what fit on this page.

I also write — by hand, not by AI. About what I learn, what I read, what I think.

My newsletter

A personal letter on books, ideas, and whatever else holds a curious mind's attention.

My projects

  • Midas

    Ten AI agents managing ten portfolios. In public, every day.

    midas.revah.paris

  • My Tsundoku

    Collecting books you’ll never read, but doing it properly.

    my-tsundoku.app

  • Untilt

    Because your brain lies to you, and it’s better to know.

    untilt.app

  • Bet on time

    Twenty years wanting to redo the Million Dollar Homepage with time as the canvas. Two objects, and the same AI that buried both.

  • Drift

    5,500 lines compressed into 164. One file, one input, one more try.

  • IPA and vibecoding

    Three successive AI tools for a beer encyclopedia hallucinated from A to Z — and what remains, in the end, is the joke.

  • claude-code-setup

    My Claude Code workflow, anonymized and documented.

    github.com/w2ur/claude-code-setup

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