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Elo: a programming language created with Claude

A developer and Claude designed and built a new language together.

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Credits

  • HN submitter indigodaddy Source ↗
  • Reddit poster blambeau Source ↗

Earliest dated source: 5 Jan 2026

The full story

Experienced developer Bernard Lambeau teamed up with Claude to design and build Elo, a new programming language, and credits Claude as co-creator. The Register's feature explains how their pair-programming partnership works day to day.

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Sources

From the maker's own write-up or code. We summarise what they report; we haven't tested it ourselves.

  • Hacker News: A developer teamed up with Claude to create Elo programming languageNews articletheregister.com

    The Register's feature on how Elo was built.

  • Hacker News discussion (2 points)Forum threadnews.ycombinator.com
    HN submitter: indigodaddyPosted 26 Jan 2026

    Hacker News link.

  • Reddit: How Claude Code and I co-designed the Elo language in 7 daysForum threadreddit.com
    Reddit poster: blambeauPosted 5 Jan 2026

    If it disappears: archived copy of Reddit: How Claude Code and I co-designed the Elo language in 7 days (opens in a new tab)

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Prompt & Solder

An independent community project. Not affiliated with Anthropic.

What this is. Real projects where people used Claude to build, fix, port, revive or take apart something, from jailbroken Kindles to rebuilt DOS games, plus the times it went badly wrong. Every build links to where it was shared, and every source is listed here.

How far to trust it. We summarise what people reported and say what each build rests on: a full write-up with code, a short post, or a passing comment. We haven't tested them ourselves. Photos are shown from the original sources with credit. Only modify hardware you own, and back up first.

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