[Unit]
Description=Bridge Thingy:52 to MQTT
Wants=network-online.target
After=network.target network-online.target

[Service]
Type=simple
User=service
ExecStart=python3 /path/to/thingy52-mqtt-bridge/app.py
Restart=on-failure
RestartSec=10s

[Install]
WantedBy=multi-user.target