LaserGRBL Linux solution, LaserGRBL is one of the best software.
CAD Application entire developed in Python
Open-Source Shoemaking
Cross-platform Open-source 2D CAD
cppcam is a 3D CAD app for drafting G-Code toolpaths for CNC Routers
Dedicated to computer-aided engineering Linux distribution
OpenFOAM UI based on web
Cuts 3D objects from polystyrene foam (EPS/XPS)
Open Source CAD