Worked on the symfony/symfony repository to enhance Polish translations for validation messages, focusing on XML validation, UUID input validation, and general validator errors. The approach involved reviewing and refining translation units to improve clarity and consistency in the user interface, directly addressing ambiguities that could affect Polish-speaking users. Leveraged skills in Symfony, internationalization, and localization to ensure that validation messages were both accurate and contextually appropriate. The work included code review and targeted adjustments to specific validator and form translation units, contributing to a more reliable and user-friendly experience for developers and end users working with Polish language support.