How does one make a point-release distro into a rolling one? A distro is a repo and configuration (and, of course, the community that grows around it, but that’s sort of ephemeral). So, if they are doing rolling release, they must not be using Ubuntu’s repos… what do they use?

Anyway, this is not to poo-poo a new rolling release distro; the more the merrier. I think people are waking up to the fact that rolling, with fewer moving parts per update, is the best way to get stability. Debugging effort grows like O(2^n) where n is the number of packages updated.