Worked on the dataease/dataease repository to enhance backup reliability by implementing a Backup Operation Safety Check using shell scripting and system administration skills. Addressed a critical bug by introducing directory validation logic that prevents backups from running inside the DataEase installation directory or its subdirectories, thereby reducing the risk of accidental data corruption. The solution aborts unsafe backup attempts with a clear error message, improving operational safety and traceability through explicit commit references. This update strengthened data integrity within backup workflows and demonstrated a methodical approach to error handling and validation in shell environments, focusing on robust, maintainable system operations.