Yes, indeed, @LeonidS . But what's the use of a language module, even when the translations are of decent quality, when the module breaks the layout in Artificer? Since the module is from a third-party developer, who doesn't seem to be active anymore, German language is not available actually. Me and some other German site admins could need a replacement. But I think with Tailwind that shouldn't be a huge problem.

I agree. But until Version 12 you need to have a working language module first, before you can change language keys, right? Maybe that changes with new Tailwind layout?