The text discusses the creation of a "smart container app" to monitor food shipments using NB-IoT, Node.js, and Pusher. The app consists of two main components: a hardware component that uses Twilio's Narrowband Developer Kit to send data from a temperature/humidity sensor over the NB-IoT network, and a software component that receives this data and updates a web application using Pusher. The project involves installing required libraries, setting up the server and client-side applications, connecting the two worlds with a webhook, and testing the prototype. The app has potential applications in industries such as asset management, smart devices, and smart manufacturing.