OnShape is just another skin over Parasolid (closed-source geometry kernel sold by Siemens) like SolidWorks, VectorWorks, and others I forget. So it doesn't re

OnShape is just another skin over Parasolid (closed-source geometry kernel sold by Siemens) like SolidWorks, VectorWorks, and others I forget. So it doesn't really represent meaningful progress towards FOSS CAD because ultimately it uses the same proprietary, expensive library to do the heavy lifting as most of its competitors.