I had no idea they were doing this; good for them! 1. What fraction of the core OS can be switched over? Can they oxidize systemd? 2. Are other distros going

I had no idea they were doing this; good for them! 1. What fraction of the core OS can be switched over? Can they oxidize systemd? 2. Are other distros going to switch over (e.g. Debian, which I think of as the ur-distro)?