This request is to make available for Wikidata lexemes the language codes for the Arandic group of Australian language varieties, which notably is the indigenous language cluster with the most living speakers on the continent.
The codes are:
adg - Antekerrepenhe
aer - Eastern Arrernte
aly - Alyawarr
amx - Anmatjirra
are - Western Arrernte
axe - Ayerrerenge
axl - Lower Arrernte
gbb - Kaytetye