There are 2 repositories under launchdaemon topic.
A utility that allows you to easily create a .pkg containing a LaunchDaemon or LaunchAgent, and a target script of your choosing.
Easily create a LaunchDaemon for use on a Mac.
macOS CLI tool to toggle between admin and standard privileges
Communicate with launchd.
This module runs as a LaunchDaemon and periodically polls a GMail account's status feed, parses the unread message count and sends it to a Graphite instance for graphing and analysis.
Objective C code.
Mockup project containing experiments with packaging and installing jobs on macOS
Rust bindings to the ServiceManagement.framework on macOS