[Unit] Description=Feishu Approval Designer Service After=network.target [Service] Type=simple User=root WorkingDirectory=/opt/feishu-approval Environment=NODE_ENV=production Environment=PORT=8080 Environment=HOST=0.0.0.0 ExecStart=/usr/bin/node server.js Restart=on-failure RestartSec=5 [Install] WantedBy=multi-user.target