[Unit]
Description=Roomba IoT

[Service]
ExecStart=/srv/roomba-iot/main.js
Restart=always
User=root
# Note RHEL/Fedora uses 'root', Debian/Ubuntu uses 'nogroup'
Group=root  
Environment=PATH=/usr/bin:/usr/local/bin
Environment=NODE_ENV=production
WorkingDirectory=/srv/roomba-iot

[Install]
WantedBy=multi-user.target