During May 2025, Bastien Nollet focused on stabilizing the Performance Alert Plugin within the vatesfr/xen-orchestra repository. He addressed configuration schema validation in JavaScript, ensuring the plugin robustly handled empty lists and required at least one item when necessary. By refining the monitoring logic, Bastien limited alerts to only running virtual machines and hosts, which improved the accuracy and reliability of system monitoring. His backend development and configuration management work consolidated bug fixes that enhanced production monitoring stability. Although the period involved no new features, Bastien’s targeted engineering contributed depth by reducing false positives and reinforcing the reliability of alerting workflows.