
Rtifact
An open-source tool for building HTML artifacts for AI agent
What it does
Why let your AI agent write HTML that consumes 2-5x tokens when it can write JSX? Let your agent write JSX with React, Ant Design, Tailwind CSS, React Icons, and PrismJS. Rtifact handles the build and produces a finished artifact with gzip-compressed assets as onehtml file starting at about 15.6 KB. Rtifact turns ajsx file into a portablehtml artifact that you can share with your colleagues!
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- TNThi.ng – open-source building blocks for computational design2020 · ▲107
The first stage of the new http://thi.ng website is live, an up-to-date & hopefully more useful springboard to the 250+ projects and overview of my opensource activity since 2006... Work is ongoing, collecting & re-organizing projects, assets, documentation and extracting interrelationships (incl. older work & music projects (e.g. http://thi.ng/synstack related), clients/people...). Aim is a proper archive of the past 20+ years of outputs & encounters. This is the first website update since 2015. As the timeline visualizations show,…

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I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com
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Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…
AI · 26d ago · cactuscompute.com


Launched alongside, August 2026
the whole month →- TL
Life & fun · 9d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com