The Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA) normally applies to derivative works containing CAD symbols, footprints, and 3D models from SnapMagic, including designs, design files, and manufactured boards. However, we decided that you should be able to use CAD symbols, footprints, and 3D models to design and produce any printed circuit board, regardless of the license. Therefore, the license for CAD symbols, footprints, and 3D models contains the following Design Exclusion 1.0:

You have permission to propagate a work of a design, design file(s), and/or manufactured board(s) formed by combining CAD symbols, footprints, and 3D models provided by SnapMagic, even if such propagation would otherwise violate the terms of CC BY-SA. You may then convey such a combination under terms of your choice.