Hi,
I just translated a few sentences in the wiki. I had to notice that it's quite hard to find a translated version of a specific page. Here is an of example what happened to me: I translated a whole page from EN to DE. I wanted to replace the links with DE pages (if existing). But I missed the existence of one page and started to translate it (even though a translation already existed).
If you look a Wikipedia there is a link list in the side bar linking all translated versions of the page you're viewing. I think something like that would be a great feature for such a huge multi-language wiki as recalbox has. Maybe an external wiki could help as the GitHub wiki does not seem to have built-in option for that.
Just an idea.