${MULLE_REPOSITORIES:-https://github.com/mulle-nat}/mulle-homebrew;./bin/mulle-homebrew;${MULLE_HOMEBREW_BRANCH:-release}
${MULLE_REPOSITORIES:-https://github.com/mulle-nat}/mulle-configuration;;${MULLE_CONFIGURATION_BRANCH:-release}
${MULLE_REPOSITORIES:-https://github.com/mulle-nat}/google-toolbox-for-mac