WaterMind
Free hydration tracker No ads Your data stays on your phone
What it does
WaterMind is a minimalist, privacy-first hydration tracker for Android. Log water in one tap with customizable cups, glasses, and bottles. Smart reminders only fire during your active hours—and stop once you hit your daily goal. Build streaks, unlock 14 badges, complete weekly challenges, and share your progress with beautiful cards. Includes a home screen widget, dark mode, weekly/monthly stats, and 5 languages (EN, FR, ES, DE, IT). Free forever. No ads. No account.
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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