If that's your definition, then FreeBSD and Solaris solved this without paying the systemd tax, via ZFS-based boot environments. https://www.freebsd.org/cgi/ma

If that's your definition, then FreeBSD and Solaris solved this without paying the systemd tax, via ZFS-based boot environments. https://www.freebsd.org/cgi/man.cgi?query=beadm&sektion=&manpath=freebsd-release-ports https://www.freebsd.org/cgi/man.cgi?query=beadm&sektion=&man... NeXt->Apple also avoided anything like systemd via a configuration system that supported inheritance across search domains (User, Local, Network, System): https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Miscellaneous/Foundation_Constants/index.html#//apple_ref/doc/c_ref/NSSearchPathDomainMask https://developer.apple.com/library/mac/documentation/Cocoa/...