Need to design on a Unix like OS?
Due to the fact that the code generator is written in Java it runs on basically all operating systems. The only requirement is to have a fairly recent Java version installed. But what if you want to design on a Unix system?
Most UML modelling tools don't run on Unix systems. What can you do?
Simply use the built in state machine editor. The only additional prerequisite is to install graphviz (for auto-layout) which is available also for many Unix like systems.
Below the state diagram editor runs on my FreeBSD server showing the GUI on my Mac box.
Enjoy your flexibility
freebsd-version -u 10.0-RELEASE-p8 export DISPLAY=192.168.6.25:0.0 java -jar codegen.jar -p ssc -E -o test.xml test.xml