Identity

Unit: nodered.service (systemd) or PM2 process (pm2 list) or Docker container
Port: 1880/tcp (web UI and API)
Config: ~/.node-red/settings.js (native), /data/settings.js (Docker)
Flows: ~/.node-red/flows.json (native), /data/flows.json (Docker)
Logs: journalctl -u nodered (systemd), pm2 logs node-red (PM2), docker logs <container> (Docker)
User: typically pi (Raspberry Pi), nodered (dedicated service user), or the installing user
Install: npm install -g --unsafe-perm node-red (native) or Docker image nodered/node-red

Key Operations

Operation	Command
Start (systemd)	`sudo systemctl start nodered`
Stop (systemd)	`sudo systemctl stop nodered`
Start (PM2)	`pm2 start node-red`
Stop (PM2)	`pm2 stop node-red`
Start (Docker)	`docker start <container>` or `docker compose up -d`
Check logs (systemd)	`journalctl -u nodered -f`