Worked on enhancing the reliability of daemon installation for the openclaw/openclaw repository, focusing on system administration and DevOps practices. Addressed a specific issue where the systemctl is-enabled command could return exit code 4 on fresh Ubuntu installations, which previously caused installation failures. By updating the Node.js and TypeScript-based setup scripts to interpret this exit code as 'not-enabled' rather than an error, the installation process became more robust and user-friendly. This targeted bug fix improved the overall stability of the daemon setup on Ubuntu systems, ensuring smoother deployments and reducing friction for users installing the service in new environments.