Once I worked at company X, while there I have seen a said Library for universally accessing things in OS. It was written by our senior architect. Year later I worked at another company, there was this high strung developer boasting about his own library. He even put it up on a webpage - was before GitHub. It was same library at company listed above, so I ratted to the developer who wrote that library. I usually feel queasy about ratting, for some reason I did not feel a slight bit of dissonance.