Hi John, This is good news indeed for Guix-using engineers and architects. I shall follow developments with interest.
I can look after the OpenCASCADE dependency too. This package is due an update but upstream development has been slow of late. Debian have switched to the OCCT version for FreeCAD and I am thinking that it would be best for Guix to follow suit. This would entail the introduction of a new opencascade-occt package, which I plan to do soon, if no-one beats me to it! Best regards, Paul.