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We could save petabytes of cache storage with Zstandard and Pingora 17 by torutofu | 0 comments on Hacker News.

Why do so many tools have JSON config files? 3 by stagas | 0 comments on Hacker News.

I Don't Have a Smartphone 44 by speckx | 30 comments on Hacker News.

The race to engineer new knobs for the human brain 13 by pminimax | 0 comments on Hacker News.

UEFA's Champions League draw creates unfair clusters; a Cayley graph fixes it 12 by erdems | 2 comments on Hacker News.

Launch HN: Nori Robotics (YC S26) – A low-cost humanoid robot for development 35 by AntonioLi | 5 comments on Hacker News. Hey HN, I’m Antonio from Nori Robotics ( https://ift.tt/3johDuN ). We build a $1,688 bimanual mobile robot in San Francisco for robotics developers and researchers. I started working on Nori while doing robotics research at Columbia. I was teaching robots through human demonstrations, but getting my hands on affordable hardware was difficult. Most labs have one or two expensive robots, which makes it hard to collect large datasets, run long experiments, or test across several robots. So I built my own. After seven iterations the latest Nori has: * 19 degrees of freedom * Two 7+1 DOF arms with a 1.5 kg payload per arm * A 55 kg telescoping lift * A differential wheeled base * Four 720p, 30 fps RGB cameras * 2D lidar * A dual microphone array with full-duplex voice communication * A 432 Wh battery * A Raspberry Pi 5 with 4 GB RAM (SLAM and safeties are run on boar...