TL;DR
Adafruit has released a new guide for a project called Fruit Jam Face Detection, which leverages a USB webcam and CircuitPython to perform local face detection using OpenCV, a popular computer vision library. This setup allows users to run the face detection model entirely offline, meaning you don’t need to connect to the internet or rely on cloud services. When a face is detected, the system outlines it with a green box on the camera feed, which can be displayed over a DVI (Digital Visual Interface).