hi @Juantte! RoboFont 4.0 was released this summer with several changes in the drawing API. Many extensions have not been updated yet, but the community is catching up! https://forum.robofont.com/topic/804/robofont-four/2 There is no specific problem with the M1 processor

@frederik Frederik, this is all brilliant!! Thanks so much for digging into it. Importing the multiprocessing code is indeed the trick; the demos work now perfectly. And I can't wait to try out the new async stuff in the next releases! Thanks!!

@frederik @gferreira Ah thanks, guys! I was trying to do it in lib and not mojo 🤦‍♂️

FYI: if you need to install a package for a specific python you can use pip3.6 install numpy

I see... they will be added