Thanks for sharing this!
I was also working on a
$1 using its support for speech synthesizers on MacOS and Windows, but ended up giving up because, as a totally blind developer, I couldn't do much beyond providing a screen-reader for the game's user interface as I couldn't navigate the game world alone myself, plus I didn't want to have to update the add-on every time Blizzard patched the game and changed something that caused it to break. The existence of that competing add-on for classic that was far more developed than mine with contributions from sighted people also weighted in my decision to stop development.
I really do miss classic World of Warcraft, especially considering that vanilla through Wrath of the Lich King were the only versions that I played seriously, so I might actually update the 77GB client that I still have installed on my Mac, resubscribe for a month, and try to play with that add-on myself, which I hadn't tried before despite knowing about its existence because it was in German.