I don't really have any ideas in mind, if you were interested in making one, or even if you had any ideas, I would be very interested in hearing them!
If you are in fact interested, would be be able to email me (or even attach them in this thread if you want; people could give feedback ) some mockups. You could just pencil out some general design ideas, I wouldn't spend too much time on them at this stage.
how do you open this as a project on adobe builder?
If you want any help, we could start an email thread; the main steps are getting git installed on your computer, once this is done it will be easy to get the source.
However if you're not interested in the Git route, you can download a zip/tarball of the source on GitHub as well.