The Emacs built-in “Customize” tool is very close to that, and there’s also the built-in package manager. I guess this kind of generator could be implemented i

The Emacs built-in “Customize” tool is very close to that, and there’s also the built-in package manager. I guess this kind of generator could be implemented inside Emacs itself as a “starter package” instead of a web page, would be pretty cool.