Thanks for your work and I really like what you have done.
I would also like to drop the jquery stuff out of the repo, but do you know any good way to still let the user integrate the widget as easily as possible into the admin?
He would need to specify the jquery dependecies himself?
Yes the dependencies would be required himself. Probably the best way to do this is to create something like django-jquery and django-jqueryui each of which simply have static/jquery.min.js and static/jqueryui.min.js and can be handled by PIP dependency resolution.