kaest4/pose-tracker ? reverse-engineered prompt

Build me a simple Python app that uses my webcam to do real time pose tracking.

I want it to open a window, detect a person’s body pose live from the camera, and draw the skeleton connections on a plain blank canvas instead of showing the camera feed. Make it feel clean and easy to run, with fullscreen support if possible. If the user isn’t visible, it should handle that gracefully instead of crashing.

Please keep it lightweight and practical, with clear code in one main file if that makes sense. Use whatever common pose detection approach is best for this kind of project, and look up current docs online if you need to. Include the basic setup so I can install what I need and run it right away.