Been doing this since 1999. The only thing novel I see here is the transpilers - but you know… you don’t need that. You can build HTAs with native JavaScript, CSS and HTML - and with a little VBScript mixin, directly work with Windows libs. Back in ‘99 and early 00’s I was delivering “thin-client” control panels & management tools for server farms, sensitive accounting data, among a variety of other things. It was (and likely still is) a great way to provide a web interface as a desktop app for scenarios where exposing the management interface to the open web is undesirable.<p>Nifty project, but IMHO the world is better off using native JavaScript without all the BS that comes with TypeScript, etc. JavaScript is so powerful and amazing, it’s a bummer to hamstring your app by using TypeScript and classic OO inheritance models that preclude the beauty and dynamics of JavaScript as a functional, prototypal language.