Does Udacity even have free courses anymore? When looking at the website, I see only nano degrees for which one has to pay. If they still offer the free courses

Does Udacity even have free courses anymore? When looking at the website, I see only nano degrees for which one has to pay. If they still offer the free courses, they've buried them quite effectively under all their non-free stuff. (Also, I thought the quality of the Udacity courses was mixed - there was one on robotics that had quite nice content, but horrible Python implementations one had to work with.)