And I can see this taking off. Obviously not fast because most of your potential customers wouldn't even know yet they need your services, but that should be able to slowly bootstrap. And I suppose once you would have built a strong team and gotten some notoriety, you would be able to bootstrap your technological edge into some concrete product.
Having said that, I still have some doubts, mainly because I think we are in a coding bubble, and the future belongs less to the programmers than to the engineers who will build the new space rockets or the technology to exploit green energies from example, while with the standardization of functional programming and the development of various libraries it will be easy for a non programmer to start creating software components that are currently requiring programmers (IMHO there will be less "pure" programmers and more "X's who can program" as you once said here on HN).
Nevertheless I wish you can succeed with your idea, even though I don't think I'll be able to work in your company as I am not a top programmer.