A set of real time computer vision demos built with MediaPipe and React, including object detection, image classification, hand gestures, and face landmark tracking.

Complete example of testing Stripe webhooks locally using Volley. No ngrok, no tunneling, no exposing your server. Includes Express.js server, webhook handlers, and best practices.

Abstract: Context: Programming education keeps facing chal-lenges. A significant challenge is the mismatch between the increasing student demand and the shortage of teaching workforce on personal ...