## systemd

```ini
# /etc/systemd/system/opex-flow.service
[Unit]
Description=OpexFlow
After=network.target

[Service]
Environment=OPEXMX_HMAC_SECRET=change-me
ExecStart=/usr/local/bin/opex-flow /etc/opexmx/config.yaml
Restart=on-failure
User=opexmx

[Install]
WantedBy=multi-user.target
```

## Edge (ARM64)

The same static binary cross-compiles to `aarch64-unknown-linux-musl`. Deploy identical
artifacts from Raspberry Pi to rack server.