SetupTester.com
Lightning-fast, browser-based hardware diagnostic tools.
What it does
Free browser-based hardware tests for your mouse, keyboard, and audio. Run a double-click test, keyboard ghosting test, spacebar CPS test, stereo audio test, and scroll test — no download required.
Free, browser-based diagnostic tools to check your mouse, keyboard, and audio. No downloads, no sign-ups — just instant results. Detect a failing mouse switch by catching unwanted double-clicks that happen within milliseconds of each other. Press multiple keys at once and see exactly which ones register to find your keyboard's rollover limit. Mash the spacebar for 10 seconds and measure your clicks-per-second speed and switch responsiveness. Play a clean tone in only the left or right channel to confirm your headphones and speakers are wired correctly. Scroll up and down to check for skipping, stuttering, or a jumpy scroll wheel encoder in real time. Not seeing the diagnostic you need? Let…from setuptester.com
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Launched alongside, August 2026
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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 · 17d ago · simedw.com