Alex contributed to the OCA/server-tools repository by migrating the fetchmail_attach_from_folder feature to ensure compatibility with Odoo 18.0. This work involved updating Python code and HTML templates, applying pre-commit hooks to enforce consistent code formatting, and expanding the test suite to cover manual email attachment handling. Alex also refactored test helpers to improve the reliability of mocks, supporting more robust testing practices. By focusing on migration and code quality, Alex reduced upgrade risks and improved maintainability for future development. The technical approach demonstrated proficiency in Odoo development, Python, and automated testing, delivering a well-integrated and reliable feature update.