I am. :)
Most of the subscribers here are new as well since the recent reddit exodus, I'd say that makes them active.
Your own 3D parametric modeler.
FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters.
I am. :)
Most of the subscribers here are new as well since the recent reddit exodus, I'd say that makes them active.