Romansh, a Rhaeto-Romance (https://en.wikipedia.org/wiki/Rhaeto-Romance_languages) language, is beside German, Italian, French the fourth official language of Switzerland. At the moment, there is no locale which can be selected for the language. The locale would be rm (https://www.loc.gov/standards/iso639-2/php/langcodes_name.php?iso_639_1=rm).
It would be great to have this locale available, so one doesn’t need to do workarounds with other locales.
welcome!
Happy holidays you too!