Hey.
Welcome to the forum.
It should work fine, and in my experience, may even work cross platform.
Cross platform isn't officially supported however, so if that does not work, please accept my apologies.
As for being against the rules, I'd be happier if you deleted the other copy once you've died on one.
But, I will confess I have not invested much time into detection/prevention of this either since we're still in alpha, so it's on the honor system for now.