That’s also the manifest.json issue, it’s the format used specifically by the Twitch (
) launcher.
Coincidentally, I’m in the middle of hand-editting that very file to publish the next version of my pack.
There is a specifically allowed list of packagable mods for Curse to accept distribution, and it did have Gregtech:Any on it last time I read it (late 2018).
If it wasn’t for some mods’ liscences requiring the pack itself to be on CurseForge (rather than the quite reasonable non-distribution ‘fetch my mod on demand from CurseForge’ clause) I’d totally agree with local posting for our niche interest.