Yes. And do the same with everything you want to use but doesn't have a feature you can't add yourself* --see how far that will get you. (*) e.g because you do

Yes. And do the same with everything you want to use but doesn't have a feature you can't add yourself* --see how far that will get you. (*) e.g because you don't know how to do so, you're not good enough to program it, the main maintainers don't agree or because the source is closed.