Greetings, @deratiseur! This continues our conversation from this thread. (I also sent you a private message on Gibberlings3 where I'd prefer to continue our conversation, but I am also willing to converse here.)
Since you've made so many spells, what say you to making teleport for EET? (This is my suggested implementation which almost certainly requires EEex.) I know you updated teleport without error to be EE compatible, but my suggested implementation works with all overworld map locations and forbids certain areas from being warped out of or/and into for plot or/and technical reasons.