There is a Malayo-Polynesian language in Bengkulu, Indonesia with about 350,000 speakers called Rejang, Redjang, or Rejangese.
It has its own native Brahmic abugida.
But I'm wondering if it also has a Latin orthography which is used to a degree equal to or greater than the native script. It could also be possible that all writing is in the national language, Indonesian, leaving Rejang as mostly a spoken language in modern times.
Information in Wikipedia and the Internet generally is sparse. Some solid information on whether and to which degree Rejang is written in Latin script would be appreciated.