Jet is fantastic; XML kinda sucks

Here let me convince you that a Jet-like syntax is better than an XML-like syntax. No need to specify what the closing tag is. This is needlessly verbose. You could argue that this gives you an ability to confirm all tags are correct, but I'd say most people use editor plugins to auto-close tags in the right order anyways. XML in general has a lot of neat features but the syntax is only nice for…