How we halved DNS build delay and cut memory use by 85%

I rebuilt the trading grid I've had in my head for 15 years.

The author rebuilt the live-data table he wanted while working on derivatives trading 15 years ago, open source and free, and 11 times faster than a similar tool.

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I’ve been building an open-source Python toolkit for working with news — Open News

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I made a free, open-source app for wireless DualSense haptics and adaptive triggers on PC

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Show HN: Every Satellite in Orbit Since 1957

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altaria — 2in1 ad-free SoundCloud player + local-first gym tracker

Two gym annoyances in one fix: SoundCloud ads firing mid-set and paywalled gym trackers — this app combines ad-free listening with a local-first workout log.

Why this: Covers free · Published within 6 hours