Worked on the aws-mwaa/upstream-to-airflow repository to enhance internationalization and localization, focusing on improving the user experience for Korean-speaking users. Addressed a missing translation for the 'schedule not backfillable' message and corrected formatting in the 'permission denied' notification, ensuring accurate and clear messaging. Utilized JSON to update components.json, aligning with established i18n workflows and preparing the codebase for broader localization efforts. Validated coverage for critical user-facing messages and implemented checks to prevent future regressions in localization strings. These targeted fixes reduced user confusion and support needs, demonstrating attention to detail in internationalization and localization using JSON and related tools.