Mac/BuildScript/README.rst is really nice and helpful documentation for the wonderful Mac/BuildScript/build-installer.py, but I'm missing the instructions for the final step of producing the installer -- transforming the legacy bundle installer to flat installer.

My hunch is that I could extract the Distribution.plist from an existing official installer, and then use productbuild to combine this with the pkg-s inside the produced mpkg. Should I also transform the pkg-s inside mpkg first? Even if I could end up with working installer, I would feel uneasy.

@ned-deily, could you please enhance Mac/BuildScript/README.rst and share the script or steps you are using for producing the final flat installer?