Worked on the Combodo/iTop repository to enhance the reliability of backup operations by addressing a critical issue in MySQL backup command construction. Focused on PHP and back end development, the work involved correcting the handling of the MySQLBinDir variable to ensure backup commands executed properly across different environments. Updated related tests and continuous integration workflows to cover new backup path scenarios, reducing the risk of future regressions. This targeted bug fix improved the stability of the backup workflow, making it more resilient to operational variations and lowering potential maintenance downtime. The contribution emphasized robust PHP engineering and careful test alignment.