Here is a summary of the text in 1 paragraph: Developers can use ARKit on iOS with Swift and Twilio Programmable Video to create augmented reality applications. To get started, developers need an Apple device with an A9 or later processor, iOS 11, XCode 9, and a Twilio account. They can set up their environment by creating a new XCode project and selecting the Augmented Reality App template. Then, they can use Twilio Video to connect to a room and share video and audio in real-time. The app uses SceneKit for 3D content and ARKit for tracking motion and placing virtual content on real-world surfaces. Developers can customize configurations when connecting to a room and start capturing frames when another person joins the room. Testing the app involves cloning the Video Quickstart repo, generating an access token, and replacing it in the ViewController.swift file. With these steps, developers can create immersive video apps that complement AR experiences.