Mohammad focused on stabilizing subscription routing in the Gozargah/Marzban repository, addressing compatibility issues introduced by Python 3.12. He resolved syntax warnings by updating regular expression handling to use raw strings, ensuring that backslashes were interpreted correctly and reducing the risk of misrouting. His work improved the maintainability and robustness of the backend logic, aligning the codebase with Python 3.12 best practices. Although the period involved only one targeted bug fix and no new features, Mohammad demonstrated depth in backend development and API integration, applying his expertise in Python and regular expressions to enhance code quality and future-proof the routing system.