launchd
launchd is an init and operating system service management daemon created by Apple Inc. as part of macOS to replace its BSD-style init and SystemStarter. There have been efforts to port launchd to FreeBSD and derived systems. Wikipedia
Initial release: April 29, 2005; 18 years ago
License: Proprietary software (previously APSL and later Apache License 2.0)
Original author(s): Dave Zarzycki