Hej Mads! I’ve been trying to build vstplugin on an M1 mac running SC 3.13 using your scripts, but I’m running into problems…all the other scripts seem to work great, for what it’s worth! 
I have zero experience with cmake so I’m not sure what is relevant info from the terminal output, but these lines might be worth something:
.../sc-plugins-build-scripts/vstplugin/vst/VST3Plugin.h:7:10: fatal error: 'pluginterfaces/base/funknown.h' file not found
.../sc-plugins-build-scripts/vstplugin/vst/VST2Plugin.h:8:10: fatal error: 'aeffectx.h' file not found
These lines get printed a few times and are then followed by a bunch of deprecation warnings…any idea as to what I should be doing differently?