Yes, I’m aware of that one but haven’t tried it yet. I found the instructions a bit confusing but I might study it more at some point. Inkscape is a very good drawing program that rivals Illustrator for designing with but after using Illustrator for 25+ years I found the different names and locations of the functions difficult to adapt to plus I noted some fairly large differences in computing time for some operations, so for the time being I prefer using Illustrator to design with.
Another thing is the need not only for a good design program and CAM program to assign the toolpaths you also need a program to send the gcode toolpaths to the machine. Carbide Motion that came with the SO3 works well but there are others I’m exploring. So far I haven’t found one tool/program that will do it all though Fusion 360 looks like it might … but the learning curve for it is quite steep.
With all that said I actually like the user interface for CC for simple projects but would be happier if it could do more.