Also this WAS for modder's to find and in a sense it is a code, just not the computer language type.
Regarding speculation on what has the Vasari running, just my theory.
Perhaps the beginnings of it are already here. Perhaps the salvers are slaves themselves. The Loyalist are already defeated and the Rebels are the only hope to save their kind. The Vasari home systems are completely destroyed and now there is nothing but machines and they are expanding, at the moment unstoppable.