Nitro is a tiny process supervisor that also can be used as pid 1 on Linux.

There are four main applications it is designed for:

  • As init for a Linux machine for embedded, desktop or server purposes
  • As init for a Linux initramfs
  • As init for a Linux container (Docker/Podman/LXC/Kubernetes)
  • As unprivileged supervision daemon on POSIX systems

Nitro is configured by a directory of scripts, defaulting to /etc/nitro (or the first command line argument).