XML, as the name implies, is extensible. An important aspect of Hyperview is that developers can create their own high-quality UI elements that can then be refe

XML, as the name implies, is extensible. An important aspect of Hyperview is that developers can create their own high-quality UI elements that can then be referenced by the backend using XML tags. These are things we can't do with a subset of HTML. In the Hypermedia Systems book, I showed examples of extending the XML format to add things like swipeable rows and toast messages: https://hypermedia.systems/book/extending-the-hypermedia-client/ https://hypermedia.systems/book/extending-the-hypermedia-cli...