Worked on enhancing the localization capabilities of the JCQuintas/mui-x repository by delivering a comprehensive Polish (pl-PL) locale for the Scheduler component. Focused on achieving full translation key coverage and refining the user experience for Polish-speaking users, the work involved close collaboration with other contributors to ensure translation accuracy and consistency. Utilized TypeScript as the primary language, applying internationalization and localization best practices to address translation gaps and improve accessibility. The effort resulted in a more inclusive Scheduler component, supporting a broader user base and reducing friction for non-English speakers. No bug fixes were recorded during this period, emphasizing feature delivery.