The current scripts are supposed to work in a CI environment.
On trying these on a local machine; if the build fails due to some reason, subsequent attempts to build rawpy won't work and you might see errors like:
+ source .github/scripts/retry.sh
+ export MACOSX_DEPLOYMENT_TARGET=10.9
+ MACOSX_DEPLOYMENT_TARGET=10.9
+ export PYTHON_INSTALLER_MACOS_VERSION=10.9
+ PYTHON_INSTALLER_MACOS_VERSION=10.9
+ '[' 3.7 == 3.5 ']'
+ git clone https://github.com/matthew-brett/multibuild.git
fatal: destination path 'multibuild' already exists and is not an empty directory.
We need to have new scripts that take this case into account and add some documentation to the Readme on how to use them as well.