Rust, a popular programming language, is used in conjunction with Twilio's services to send an SMS message. To start, Rust and required build tools must be installed, followed by setting up the developer environment with OpenAPI Generator. A new Rust project is created, and necessary crates are installed using Cargo, the official package manager for Rust. The code generates a Twilio helper library in Rust and sets up credentials from a .env file, including an Account SID, API key, phone numbers, and other parameters. After loading the credentials, the `create_message()` function from the twilio_api module is used to send a message using Twilio's Programmable Messaging API. The main.rs file contains the necessary code to compile and run the program, which sends a text message with the content "Ahoy, Rustaceans!".