Initial example with possibility to create 3 package from the same source code tree.
Example: Create backoffice package

php build/build.sh backoffice
zs-client packZpk --folder=build/packages/backoffice/ --destination=/tmp
zs-client installApp --zpk=/tmp --target=<your-server> --baseUri=<your-host-or-path> --userParams="APPLICATION_ENV=staging&DB_PASS=test&APPLICATION_ENV=bo"