minit

Minimal PID1 replacement for embedded systems. A middle ground between BusyBox init and systemd.

Features

• JSON or simple conf — service definitions in .json or .conf
• Service supervision — track and respawn processes
• Restart policies — always, on-failure, never
• Auto-restart with backoff — exponential backoff to avoid restart storms
• Signal handling — SIGTERM, SIGINT → graceful shutdown
• Boot time measurement — write boot_ms to /var/run/minit.boot
• Dependency ordering — topological start order via depends / provides
• Crash logging — log exits to /var/log/minit/crashes.log
• Minimal footprint — <500KB static memory

Build

make

Usage

./minit [config]
# Default config: /etc/minit.conf or MINIT_CONFIG env