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Claude Code built in an hour what a team spent a year on

A Google engineer's report on a striking productivity gap.

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Earliest dated source: 3 Jan 2026

The full story

Senior Google engineer Jaana Dogan publicly said that Claude Code built in one hour what her team had spent a year developing. After her comments attracted a lot of attention, she clarified her original assessment. The article also includes workflow tips from Claude Code's creator.

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Sources

From a short post by the maker, so the details are as they tell them.

  • Lemmy: Google engineer says Claude Code built in one hour what her team spent a year onBlog or write-upthe-decoder.com
    Published 3 Jan 2026

    The Decoder's report, including the later clarification.

  • A linked thread: news.ycombinator.comForum threadnews.ycombinator.com

    Linked in the post.

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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.

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