Yes. Launchd is arguably the first modern unix init system, with systemd and upstart being it's conceptual children. It eschews shell scripts in favor of non-t

Yes. Launchd is arguably the first modern unix init system, with systemd and upstart being it's conceptual children. It eschews shell scripts in favor of non-turing complete launch configs, manages process lifetimes in addition to just starting them and does bootup in parallel using pre-created sockets for synchronization. It is quite barebones compared to systemd, but fundamentally it uses similar approaches to fulfill the same goals.