Add field to language template

Hi there,
so we are currently working on a website with a lot of languages. It would be great if we could mark some languages as drafts in order to work on them in the backend without displaying it in the frontend.
I thought the Kirby-way would be to add a toggle-field to the language.yml that indicates whether a language is ready for the public or still wip.
But i couldnt find anything like a language.yml or another place where one could personalize the language template.

Is there some way to do this?

Best, Joscha

There is no such thing as a language yml and there is for the time being no draft state for translations.

What you could do set up something in site settings to mark translations as ready or not, and then maybe use a route to redirect such translated pages to the error page on condition of these settings.