The best Hacker News stories from Show from the past day
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Show HN: Woxi - Open-source Mathematica / Wolfram Language reimplementation
Woxi is an interpreter for the Wolfram Language written in Rust.<p>It comes with Woxi Studio, a Mathematica-like GUI built with iced, but you can also use Woxi through a CLI, Jupyter kernel, Python package, npm package, or WASM module.<p>Compared with wolframscript / Mathematica, the main differences are:<p>- Free and open source
- Very fast startup - Typically milliseconds rather than seconds for the Wolfram kernel, making Woxi practical for shell scripts, one-liners, and other short-lived processes
- Embeddable - It can run in a browser via WASM or be embedded into another application as a scripting language<p>A more detailed comparison with Mathematica is available here:
<a href="https://woxi.ad-si.com/docs/comparison/mathematica/" rel="nofollow">https://woxi.ad-si.com/docs/comparison/mathematica/</a>.<p>Conformance is ensured with ~26'000 unit tests and ~900 .wls script snapshot tests.<p>The current focus is on fixing remaining edge cases, improving performance, and growing the community.<p>If you use the Wolfram Language, I'd be particularly interested in feedback on compatibility and missing functionality.
Contributions and bug reports are also very welcome: <a href="https://github.com/ad-si/Woxi" rel="nofollow">https://github.com/ad-si/Woxi</a>
Show HN: Woxi - Open-source Mathematica / Wolfram Language reimplementation
Woxi is an interpreter for the Wolfram Language written in Rust.<p>It comes with Woxi Studio, a Mathematica-like GUI built with iced, but you can also use Woxi through a CLI, Jupyter kernel, Python package, npm package, or WASM module.<p>Compared with wolframscript / Mathematica, the main differences are:<p>- Free and open source
- Very fast startup - Typically milliseconds rather than seconds for the Wolfram kernel, making Woxi practical for shell scripts, one-liners, and other short-lived processes
- Embeddable - It can run in a browser via WASM or be embedded into another application as a scripting language<p>A more detailed comparison with Mathematica is available here:
<a href="https://woxi.ad-si.com/docs/comparison/mathematica/" rel="nofollow">https://woxi.ad-si.com/docs/comparison/mathematica/</a>.<p>Conformance is ensured with ~26'000 unit tests and ~900 .wls script snapshot tests.<p>The current focus is on fixing remaining edge cases, improving performance, and growing the community.<p>If you use the Wolfram Language, I'd be particularly interested in feedback on compatibility and missing functionality.
Contributions and bug reports are also very welcome: <a href="https://github.com/ad-si/Woxi" rel="nofollow">https://github.com/ad-si/Woxi</a>
Show HN: My local climbing gym from photogrammetry
Commented on yesterday's Ask HN: What are you working on? (August 2026), thought I might as well submit a Show HN.<p>If you see climbing world cup/championship, there is this 3D modelling thing [1]. I want that for my weekly bouldering.<p>I scanned my local climbing gym into 3D mesh using iphone. Built a simple editor to trim, merge, move/rotate meshes. You can interact with the mesh, view routes, view climb, etc. So this is unlike many gaussian splatting projects where the main use is for viewing. I built a pipeline in updating climbing walls. Climbing routes are manually annotated. Climbing videos are registered against the 3D mesh. Based on one input video, body positions resolved into 3D/4D space. you can view the body landmarks from different angle.<p>COLMAP, OpenMVS, fastapi, svelte, database is just local json files. A read only build is exported so I can host on github page<p>If you climb, or know someone who climbs, would love to hear your feedback. Do you usually record your climbs? If I make this a service, what will make you use it?<p>[1] <a href="https://www.youtube.com/shorts/8zdUOaCr6DY" rel="nofollow">https://www.youtube.com/shorts/8zdUOaCr6DY</a>
Show HN: Mcptoon – Token-efficient MCP CLI client
Show HN: Mcptoon – Token-efficient MCP CLI client
Show HN: Write.md – A free, open-source, themeable Markdown editor for macOS
Show HN: Write.md – A free, open-source, themeable Markdown editor for macOS
Show HN: Git-knife – Edit commit messages, authors, and dates like a spreadsheet
Show HN: Git-knife – Edit commit messages, authors, and dates like a spreadsheet
Show HN: Git-knife – Edit commit messages, authors, and dates like a spreadsheet
Show HN: Scroll through all 43252003274489856000 Rubik's Cube states
Show HN: Scroll through all 43252003274489856000 Rubik's Cube states
Show HN: iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo
Show HN: iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo
Show HN: A replayable A2A jury for tracing how agents influence decisions
Show HN: I made alchemical-cosmological PCB badges
Hey guys,<p>A couple weeks ago, I was in Shenzhen, China for a hackathon and on the first day, we all used the one-day PCB fabrication to make PCB badges to wear during the event. I decided to go a little crazy and make some cool 3D alchemical-cosmological badges.<p>It's 3 PCB's stacked on-top of each other that's connected using testpoints on each board. The innerboard has a 10 cent CH32V003 MCU that powers the WS2812B neopixels on the outer rings using the testpoints and shines through using exposed soldermask.<p>If you have any questions about how the design works, feel free to let me know!
Show HN: A tiny LLM running at 21,000 tok/s on a $250 FPGA (Live Demo)
Show HN: A tiny LLM running at 21,000 tok/s on a $250 FPGA (Live Demo)
Show HN: Ante, a coding agent in a single binary that runs offline
Show HN: Ante, a coding agent in a single binary that runs offline