To run the app, make sure you have a Python 3.x version installed, then simply open the install_requirements.bat file if you're on Windows, or run the install_requirements.sh file if you're on macOS or Linux. This will install all the required Python modules.
You can run the program with python app.py. If the program crashes, try changing the index of the webcam in app.py in the line cap = cv2.VideoCapture(1)