Pragorius did a lot of explaining before my arrival.
The French and English versions did not coexist when I joined the project.
So I did a mod for multi-language support.
I modified some of the code of the game. But I also created an external part of the game that didn't exist in the game at all.
Someday I'd like to release a full mod for a complex game translation.
I don't know, maybe it won't be a mod, it will be integrated into the game.
But I'm still working on it.