Thread:Project:Support desk/Sorting Tibetan content in Category page/reply

I have seen numerous tickets about "setting $wgCategoryCollation to 'uca-abcde' on Abcde Wikipedia" in Bugzilla: https://bugzilla.wikimedia.org/buglist.cgi?query_format=advanced&short_desc=Set%20%24wgCategoryCollation&short_desc_type=substring

Matma Rex has been pretty active in that area but I have no idea if there already is a Tibetian sort order in the codebase.