This tutorial demonstrates how to use Node.js and Express to send instant lead alerts to a sales team using Twilio Programmable SMS. It covers the setup of a landing page that generates leads, the creation of a Twilio REST API client, and the implementation of a route to handle incoming lead requests. The code allows for the automatic sending of text messages to a designated agent's phone number with the lead's name, phone number, and inquiry details. This enables the sales team to respond promptly to new leads and improve customer engagement.