How do you build your web UI? Carl and Richard talk to Frank Krueger about his work on Ooui (pronounced whee), an open source project for implementing a Xamarin-forms like UI experience to the browser. The result is pretty amazing, including a web-based XAML editor that all runs in the browser... super fast! Frank talks about his experiences building code that runs with WebAssembly and the challenges of thinking through new UI experiences. The challenge is the variations in implementation - is XAML destined to fragment further, or can they all come together?