I belong to the group that runs the Ripuarian Testwiki, and we have been discussing the language code. Currently, there is no ISO-Code for Ripuarian, and an SIL-Code exists only for the biggest ripuarian dialect, Kölsch (ksh), but we do not want to use it because the majority of Ripuarian speakers does not speak Kölsch dialect. We thought of proposing an ISO code that could be "grp" (german-ripuarian), or better "frp", since the linguistic term for our language is "Franconian- Ripuarian", or simply "rip".
We are also translating the language interface, what do we have to do when it is ready?
Thanks Dominik