shivam-kotwalia/gesture-control — reverse-engineered prompt

Build me a simple Python app that lets me control a Google Slides presentation with hand gestures using my laptop webcam. I want it to detect my hand in real time and turn a few easy gestures into slide controls, open palm for next slide, three fingers for previous slide, two fingers to start the slideshow, and a fist to exit it.

Please make it beginner friendly and easy to run on a normal laptop with no extra hardware. It should use the webcam feed, recognize the hand landmarks, and send the right keyboard actions so it works with Google Slides in Chrome. Include whatever is needed to install dependencies and download the hand tracking model automatically, plus clear run instructions. If there are any Mac permissions needed for keyboard control, mention those too.

Keep it practical and reliable in decent lighting, and add a small preview window so I can see that the camera and gesture detection are working. Look up current docs online if you need to.