I've summarized the article for you: The author built a real-time SMS translation app using Twilio Functions, Twilio Programmable SMS, and the Google Cloud Translate API. To start, they needed a Twilio account and phone number, the Twilio CLI, and the Serverless Toolkit plugin. They created a new function service, deleted unnecessary files, and set up a webhook that directed incoming messages to their Twilio Function. The function translated the message body using the Google Cloud Translate API and forwarded it to the recipient's phone number. The author tested the app locally and deployed it to Twilio after making adjustments to the friend variable and updating the webhook URL. They plan to expand the app by allowing users to set their recipient's number and target language in real-time.