systemd

systemd is a suite of fundamental building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and is responsible for initializing and managing system components, services, and processes after the kernel boots. This includes managing daemons, mounting filesystems, and handling system events.

It is primarily used by Linux distributions as their default init system, offering features like parallelization of service startup, on-demand daemon activation, and cgroup-based process tracking. systemd is intended for system administrators, developers, and users who manage or interact with Linux operating systems.