I'm brand new to this and just started a test wiki over at Wikimedia Incubator and need to start translating the interface. My ISO 639-3 code is oka. The language name is 'Colville-Okanagan Salish – n̓səlxcin̓ (oka)̓ . The language is written LTR and uses it' own variation of the American Phonetic Alphabet.
Sorry it took such a long time. I only noticed it now.
This language is available for translation now. Start here:
I also suggest reading https://blog.wikimedia.org/2017/10/26/translating-mediawiki/ .
Again, sorry it took so long.