The text outlines the development of a "smart container app" that leverages Narrowband IoT (NB-IoT) technology, Node.js, and Pusher to monitor environmental conditions during food shipments. Utilizing Twilio's Narrowband Developer Kit and T-Mobile's NB-IoT network, the project involves creating an IoT prototype that tracks temperature and humidity, transmitting data to a web application. The guide details setting up the hardware with components like a temperature and humidity sensor, programming the device using the Arduino IDE, and developing a server with Node.js and Express to receive data. It also describes creating a real-time web application using Pusher for dynamic data display and integrating the system with webhooks via Ngrok. The project demonstrates a practical application of IoT for food shipment monitoring and highlights the potential for similar technologies in various industries such as asset management and smart manufacturing. The detailed process is available on GitHub for further exploration and encourages readers to engage in IoT development.