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• 438Show HN: I built an interactive HN Simulator (news.ysimulator.run)
  by johnsillings23 hours ago | 130 comments
• 186Show HN: OCR Arena – A playground for OCR models (ocrarena.ai)
  by kbyatnal4 days ago | 30 comments
• 6Show HN: Fractalbits – S3 compatibe store，1M iops p99～5ms，using Rust and Zig (github.com)
  by thomas_fa1 hour ago | 0 comments
• 3Show HN: Sparse Matrix-Vector Multiplication that works at 30–90% sparsity (github.com)
  by vlejd2 hours ago | 1 comments
• 2Show HN: Deft-Intruder – Real-time malware detection daemon for Linux (github.com)
  by 539hex2 hours ago | 0 comments
• 19Show HN: Datamorph – A clean JSON ⇄ CSV converter with auto-detect (datamorphio.vercel.app)
  by sumit_entr424 days ago | 5 comments
• 12Show HN: We cut RAG latency ~2× by switching embedding model (myclone.is)
  by vira289 hours ago | 3 comments
• 2Show HN: BTreePlus – A cache-optimized B+Tree engine for .NET faster than SQLite (nuget.org)
  by staloriana4 hours ago | 0 comments
• 37Show HN: Search London StreetView panoramas by text (london.publicinsights.uk)
  by dfworks4 days ago | 7 comments
• 85Show HN: Cynthia – Reliably play MIDI music files – MIT / Portable / Windows (blaizenterprises.com)
  by blaiz20251 day ago | 15 comments

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