Worked on enhancing the xwiki/xwiki-platform by delivering complete Polish localization for both core strings and Solr search functionality. Focused on internationalization and localization, the work involved updating 33 core strings and Solr components using XML, with all translations managed and merged through Weblate. No code changes were required, as the updates centered on translation files to close existing localization gaps. This effort improved the user experience for Polish-speaking users and supported the platform’s multilingual strategy. The approach reduced multilingual risk and contributed to broader product adoption, demonstrating attention to detail and a methodical process in managing language resources.