Got it working. It is a bit rough around the edges, but functional.

The two components

The are not started via Initial, but that is not a problem.

The script tested:

class ThatsGroovyDude implements com.thinkwrap.twatg.script.RunnableScript {
    atg.nucleus.Nucleus nuc = atg.nucleus.Nucleus.getGlobalNucleus();
    public String run() {
  
       String s = "";
       nuc.configPathNames.each { s += "${it}\n" }
       return "Hello World!\n\n" + s;
   }
}