Juan Rodriguez focused on backend and charm development, addressing reliability and user experience across two repositories. In margelo/expensify-app-fork, he resolved a broken documentation link for Expensify Card notifications, ensuring users could access setup instructions without interruption. For canonical/mysql-operator, Juan enhanced error handling in the get_cluster_status action by replacing event.set_results with event.fail, introducing a try-except block, and adding unit tests in Python to cover edge cases. His work standardized error reporting and improved maintainability, making incident diagnosis more efficient. Throughout, he utilized Python, YAML, and Markdown, emphasizing robust error handling and comprehensive documentation to support users and operators.