Ernesto Garnica focused on stability and correctness improvements for the CustomerAutoZoneSelfService/cazss-frontend and cazss-backend repositories during June 2025. He addressed two critical bugs by refining inline variable handling in the frontend, renaming variables for clarity, and updating default state logic to prevent invalid category assignments. In the backend, he corrected the authentication flow by ensuring the authentication strategy ID was properly included in service responses. Working primarily with Java, JavaScript, and Svelte, Ernesto’s targeted hotfixes reduced runtime errors and improved user experience, demonstrating careful attention to behavioral correctness and minimal disruption to existing users while enhancing overall reliability.