Finit
A fast, lightweight init system and process supervisor for embedded and desktop Linux, offered as an alternative to SysV init and systemd.
Finit is an init system for Linux designed for small and embedded systems, though it also runs on desktop and server machines. It replaces PID 1 and supervises services, runlevels, and the boot process, aiming for a small footprint and simple configuration compared with systemd or SysV init.
It ships with example install scripts and working examples for Buildroot-based embedded Linux, Debian, Alpine, and Void Linux, and its documentation covers configuration and use in detail.
It is written in C and distributed under the MIT license.