ICU & CLDR is an excellent place to start for anyone who wants to help out with support for any not yet well supported script and/or language, for those libraries and that data are what a lot of other things are built upon (like Android, iOS, Windows and macOS, to take four of the largest and most well known examples).

To get in touch and offer to volunteer, sending a mail to the icu-support public mailing list can be a good starting point: https://icu.unicode.org/contacts