It is possible to use the AIX-version and run the jar - it installs and the compiler seems to work. I have to test it yet running with Tomcat. Maybe this weekend.
You can run it on OS X, but we don't support it as an official deployment platform. You just need to download the Java-based installer, which is the one listed as HP-UX or AIX. If you follow the same instructions, it will work for dev purposes.