I put my postprocessor file for an old GSK controller (928ma) - gsk_post.py in my macros directory and it shows up for a new file but not for my existing project, which I don't mind redrawing since all opportunities for practice on FreeCAD are welcomed. I can post my postprocessor file although this is a super old and cheap controller, let me know if you are interested.
I'm using Fedora 30 and installed using dnf, I will check 0.19 in the near future since right now I have parts due but I'm will definitively set up my rig to help finish the Spanish translation (maybe help add a latin-american version, who knows)
Thanks a lot for your excellent support and the awesome videos you've put to showcase FreeCAD (I'm looking at you @sliptonic)
You guys all rock!