https://jenyckee.github.io/tags/mediapipe/Recent content in MediaPipe on Jeroen NyckeesHugoen-usFri, 19 Jun 2026 14:00:00 +0200https://jenyckee.github.io/posts/deadlift-analyzer/Fri, 19 Jun 2026 14:00:00 +0200https://jenyckee.github.io/posts/deadlift-analyzer/<p>I took a deadlift video from <a href="https://www.reddit.com/r/formcheck">r/formcheck</a>, fed it to a Python script, and got back prioritized coaching cues. All running locally on my laptop. No cloud APIs, no subscriptions. Just MediaPipe for pose estimation, OpenCV for frame extraction, and <a href="https://jenyckee.github.io/posts/qwen-pi-local-llm/">Qwen 3.5-9B running on llama.cpp</a> for natural-language feedback.</p> <h2 id="the-idea">The Idea</h2> <p><a href="https://www.reddit.com/r/formcheck">r/formcheck</a> is a subreddit where lifters post videos of their sets and ask for feedback. You film your deadlift, upload it, and wait for someone (hopefully qualified) to tell you what to fix. The problem is that feedback is inconsistent, slow, and often contradictory.</p>