sysvinit is short enough to be trivially maintainable. If you're just using it as a shim to load a framework on top of it, you can ditch even more of it cuttin

sysvinit is short enough to be trivially maintainable. If you're just using it as a shim to load a framework on top of it, you can ditch even more of it cutting it down to around 500LOC (see openrc-init). So that's not a large enough part of "the ecosystem under the distro". Debian maintained their own init-scripts framework (and still does, for kFreeBSD and other kernels), so that certainly didn't move out from under them. Arch Linux maintained their own initscripts framework, so that wasn't moving out from under them. I suppose there is a case to be made that distros were pushed to systemd by Gnome 3's reliance on systemd-logind's D-Bus API.