(at the risk of getting told of by @Sebastiaan for discussions in news 😉 ) post v12.2 stuff above, probably not doing any more major "current backoffice" work & I did say once localization was in i would have a look - and i do have a lot of javascript hanging around (esp in Translation Manager) - i've already stumbled into the weeds of no documentation/reading the repo, so maybe you are right.