A Raspberry Pi-based system using machine learning and Twilio Programmable SMS can be used to create a 24/7 "rent-a-cop" for monitoring areas of homes, particularly for detecting cats. The system uses YOLO (You Only Look Once), a real-time object detection library, Darknet, an open-source neural network framework, OpenCV, a library for image processing, NNPack, a package for accelerating neural network computation, and Twilio to send notifications. The setup involves installing the necessary software, compiling the code, and configuring the system to use a webcam and send SMS notifications when a cat is detected. The system can be customized to detect specific objects, such as cats, and send notifications with a delay to prevent spamming.