Requested at https://translatewiki.net/w/i.php?title=Support&oldid=12634789#Add_Northern_Ndebele_language
Autonym according to the requester: IsiNdebele seNyakatho.
- Update autonym in language-data
- Run src/util/ulsdata2json.php before updating
- Run src/util/ulsdata2json.php after adding
- Add to translatewiki configuration (patch)
- Add assistant languages to mw-config/FallbackSettings.php (patch)
- Deploy configuration to translatewiki
- Deploy ULS to translatewiki
- Make sure that the category for the language is not marked as disabled
- Update the translatewiki language portal to indicate that the language is enabled
- Add the requester (and possibly other relevant users) to the translators list on the portal
- Enter the autonym in the Wikimedia Portals project
- Test language search in UniversalLanguageSelector and fix the search index (if needed)