Depth to the viewport
To get the script running, you will need to install two Python libraries in Blender : opencv-python and mediapipe
Please refer to these pages :
For windows : https://b3d.interplanety.org/en/how-to-install-required-packages-to-the-blender-python-with-pip/
For Mac : https://blender.stackexchange.com/questions/211697/installing-module-to-blenders-python-mac
For Linux : https://blender.stackexchange.com/questions/56011/how-to-install-pip-for-blenders-bundled-python