
LIFTBUD
Trouve ton partenaire de sport idéal près de chez toi
What it does
Entraîne-toi enfin en toute sérénité ! LIFTBUD est l'application de rencontre sportive qui brise l'isolement social et garantit un cadre sûr pour trouver tes partenaires de séance. 🛡️ Pratique sécurisée, bienveillante et certifiée. 🔥 Musculation, running, crossfit, fitness, padel : trouve ton binôme de confiance à Rouen et en France. 🚀 Ne laisse plus la solitude ou l'hésitation freiner ta progression. Rejoins la communauté LIFTBUD et dépasse tes limites ensemble !
Does the same job
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My cofounder and I have been working on a site called Fitocracy (www.fitocracy.com), which is a social game for fitness. The idea was very much inspired by our experiences growing up as nerds playing video games, later on discovering weightlifting, and drawing the parallel between working out and "leveling yourself up." XKCD has a pretty well known comic to this effect: http://xkcd.com/189/. We find that the metaphor of workout out as leveling up in a video game resonates with quite a few people, so Fitocracy is an attempt to bring that to life. On Fitocracy, tracking your workouts earns you…


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Photosynthesis fires two of your iPhone
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is


Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d 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