zloubida explained it with the link well enough. More importantly for me, the package repository seemed to stop being maintained, because many of my packages had no updates for a significant amount of time (and they had been updated elsewhere when I checked).

Conflicts between the project leadership and the developers. I stayed on Manjaro though, this kind of things is in fact good news: it means that people in charge care, and I think things will be better thanks to that. I’ll just follow the devs if things don’t go better.