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Hacker News (27 Jul 2026)

  1. PGSimCity - How PostgreSQL Works

    336 points • 39 comments • jul 27, 2026

  2. The US is charging an American citizen for wiping his phone at the border

    30 points • 10 comments • jul 27, 2026

  3. New Jersey governor signs law banning surveillance pricing to protect shoppers

    26 points • 5 comments • jul 27, 2026

  4. I Championed Prediction Markets. Look What They've Become

    25 points • 38 comments • jul 27, 2026

  5. Open-source 3D-printed portable MRI machine built for under $70k

    19 points • 2 comments • jul 27, 2026

  6. Show HN: Port Zero – how I learned to stop worrying and love PORT=0

    15 points • 8 comments • jul 27, 2026

  7. How the Atmos clock functions

    12 points • 3 comments • jul 27, 2026

  8. Big Firms Are Starting to Hire Again, Defying Predictions of AI Wipeout

    11 points • 3 comments • jul 27, 2026

  9. Quebec scraps AI and automation projects in the public sector

    9 points • 0 comments • jul 27, 2026

  10. Sand battery: Finland's answer to a renewable energy headache

    7 points • 1 comment • jul 27, 2026