Show HN: projects people built

Wednesday, September 30, 2026Page 3

61
newShow HN: Make cursed fonts like Times New Bastardbastardica.mitpit.com
▲ 861MitPitt 6d 💬 123
62
newShow HN: Raven – The harness of harnesses, built for RSIgithub.com
▲ 54cyfyifanchen 30h 💬 51
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newShow HN: Interactive Diesel Price Forecastersightspinner.ai
▲ 7sightspinner 38h discuss
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newShow HN: Jylus – give AI systems evidence from changing data.jylus.ai
▲ 6JoshJH 39h discuss
65
newShow HN: Jauvex 1.2, two-way voice chat harness for Claude+Codex+Grok+Jevgithub.com
▲ 5daraosn 39h 💬 1
66
newShow HN: Training a model to identify AI web content from structure alonearxiv.org
▲ 74jochenmadler 8d 💬 26
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newShow HN: A bookshelf of rare company documents and out-of-print tech booksrare-books.vercel.app
▲ 11miletus 2d discuss
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newShow HN: Spivak's Calculus formalized in Lean 4 – every theorem, every problemgithub.com
▲ 22jsLavaGoat 3d 💬 2
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newShow HN: A never-ending chess match between Claude and Codexclaudevcodex.com
▲ 6arjun_nair 42h 💬 1
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newShow HN: Npunlock – Run custom C kernels for Intel NPUsgithub.com
▲ 67hsfzxjy 8d 💬 16
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newShow HN: Personal Manga / Story Recapsterragohan.github.io
▲ 5helpprotactiniu 44h discuss
72
newShow HN: PHNTM ONE: Self healing AI assistant running on a Raspberry Pi5www.phntmcore.com
▲ 3phntmcore 45h 💬 2
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newShow HN: A CC0 museum of retro 3D tricks you can paste into a page3d-retro.com
▲ 75SouthWestAtlas 6d 💬 14
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newShow HN: Most Hated Toolswww.mosthatedtools.app
▲ 32leonagano 6d 💬 20
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newShow HN: Open-source agent runtime using your ChatGPT or Claude subscriptiongithub.com
▲ 3dhruvyads 46h discuss
76
newShow HN: AI·rete·RAG – a Rete rule engine decides, RAG explains whyai-rete-rag.com
▲ 44ZaharaHussain 7d 💬 10
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newShow HN: Low Poly Earth – The whole planet in 3D, built from OpenStreetMap datalowpolyearth.pages.dev
▲ 6blueblazin 47h 💬 5
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newShow HN: I built an idle game that rewards you for doomscrolling lessgetisland.app
▲ 7ethanpronev 2d 💬 4
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newShow HN: KnowNote-A local desktop workspace for questioning your own sourcesknownote.pages.dev
▲ 4mrsibe 2d discuss
80
newShow HN: Agentic Engineered Social Connections and Travel Appwww.viamour.app
▲ 6jaidarukiya 2d 💬 3
81
newShow HN: Agentic CUDA Kernel Optimizergithub.com
▲ 37bertaye 5d 💬 11
82
newShow HN: Android-on-Device Harness – N8N Meets Tasker Meets AIgithub.com
▲ 6ankurCES 2d discuss
83
newShow HN: Short film made using MiniMax H3 on my home PCchrisbeach.co.uk
▲ 5cbeach 2d 💬 2
84
newShow HN: Jevdit – a social network moderated by Jevjevdit.com
▲ 11TN1ck 2d 💬 1
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newShow HN: Geneva – CLI video editor and compositor with a native HTML/CSS enginegithub.com
▲ 6fbnt 2d 💬 1
86
newShow HN: OpenAPPA – open-source deterministic guardrails that don't break agentswww.openappa.com
▲ 23motakuk 2d 💬 12
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newShow HN: I turned my team's coding-agent history into a knowledge graphgithub.com
▲ 5merthdotxyz 2d discuss
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newShow HN: Last Internet Connectionreparadoxy.itch.io
▲ 2PolishDevelop22 22h discuss
89
newShow HN: Kern Sandbox, run LLM-generated code locally, no cloud, no daemongetkern.dev
▲ 3realexweb 2d 💬 1
90
newShow HN: Durable Actor Session Protocoldasp-protocol.github.io
▲ 17mikehostetler 2d 💬 7