Kevin has a friend who wants to get away from Windows. His entire workflow is based on an old Windows program called CadVance. Can he move away from Windows to Linux and still use that program? Leo says that there are some things that simply force users to stay with Windows because of special apps like this. But that doesn't mean there isn't an alternative. Check out AlternativeTo.net. He can put in the name of a program and it'll show what alternatives are available in other operating systems. FreeCad is an open source option, as well as LibreCad, OpenScad, Solid Works, and Sketchup.