[eluser]BayssMekanique[/eluser]
I am interesting in knowing why through all these iterations, the language directories are still using full English spellings. Why has there not been a move to IETF language tags as directory names?
I don't see any immediate advantage to the current method, since dialects become increasingly difficult to track with a long string system, and you are required to maintain an RFC 4647 conversion table if you are using browser hinting for language selection.
I am not an avid contributor to this repo, so I'm not certain the best location to bring up this topic, but I would not mind making a merge request if there are no objections to the change.