Home/CommunityShow HN: Penmentor – Claude marks up your handwritten math like a teacherHacker News (AI)·23 days ago☆23dAge5PointsPublishedOct 20, 2026, 3:10 PM UTCCollectedOct 20, 2026, 3:41 PM UTCRead the full article at news.ycombinator.com↗Image: Hacker News (AI)overfeed.news indexes and links. We publish a short excerpt — the full article stays at Hacker News (AI).More from Hacker News (AI)Log in to follow this sourceHacker News (AI)·2 hours ago☆Chinese frontier AI models carry the fingerprint of export-controlled GPUs↗▲ 5Hacker News (AI)·3 hours ago☆A click-fraud bot led me to 5,552 GitHub accounts tied to public inboxes↗▲ 5Hacker News (AI)·3 hours ago☆Show HN: RealtimeVAD – trading false positives for 110ms earlier end-of-speech↗▲ 5Hacker News (AI)·3 hours ago☆Show HN: Cerulion – ROS 2-compatible robotics runtime with multi-process replay↗▲ 5
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