@freijon
@feddit.chAnd then there is Gentoo, where you can decide for each package if you want bleeding edge or stable
I did not say or try to imply that it's good. I said sadly it works. With emphasis on SADLY.
DecSync CC is an app that stores calendar / tasks / contacts as files on the phone. You can sync them to other devices. I use it to sync our family calendar and contacts in our household. No clouds involved.