[Unit] Description=Robot Drive Controller (FastAPI -> Serial) After=network.target [Service] WorkingDirectory=/opt/drive-ctl ExecStart=/opt/drive-ctl-venv/bin/uvicorn server:app --host 127.0.0.1 --port 8002 --app-dir /opt/drive-ctl Restart=always RestartSec=1 [Install] WantedBy=multi-user.target