macdeployqt codesigns everything and there is no way to prevent it

It seems macdeployqt always code signs everything.

I want to prevent it from code signing, as my code signing process is custom and happens later on in the build process (specifically in CMAKE when I create MY CPACK DMG). So the objective here is to use macdeployqt but skip code signing completely (or, at least, be able to exclude some libs from code signing).