Are you thinking about something like [https://glade.gnome.org](https://glade.gnome.org)/
Well of course you can use that with gintro, I gave a small example. You may also investigate [https://github.com/ba0f3/uibuilder.nim](https://github.com/ba0f3/uibuilder.nim), but I don't know what it really is about, and it may be death. But I have to admit that I do not really know what the term Rapid Application Development should really mean -- apps hacked together fast, with such a bad quality that it is dumped to github a few weeks after creation and never used again?
