This tutorial demonstrates how to send an SMS using Rust and the Twilio Programmable Messaging API in about 30 seconds. To achieve this, you need a Twilio account, a mobile phone number that can receive SMS, and basic knowledge of Rust. The code initializes three structs for successful responses and error responses, defines two functions to deserialize responses, and uses Reqwest to send a POST request to Twilio's Programmable Messaging API with the recipient, sender, and SMS body as parameters. If the request fails, an error message is displayed; otherwise, a confirmation message with the SMS body is printed to the terminal. The tutorial concludes by providing instructions on how to test the application and suggesting improvements for those who have issues following along.