VirtusQ
Uses AI to track technique and gives instant feed back
What it does
An AI-powered training app that analyzes your positioning in real time and gives instant, actionable feedback to help you improve. Using advanced motion tracking, it identifies mistakes and shows you exactly how to fix them. The app also features a personalized training section, recommending targeted drills based on your weaknesses so you can improve faster and more efficiently. Track your progress with detailed graphs and performance insights, keeping you motivated and consistent.
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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.
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Launched alongside, April 2026
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Thought the resources for GPU arch were lacking, so here we are
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With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
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