Lukasz Baka delivered Polish localization and accessibility improvements for the gristlabs/grist-core repository, focusing on enhancing the user interface for Polish-speaking users. He completed server-side string translations and advanced client-side translations using JSON and Weblate, integrating a workflow that supports ongoing updates. His work addressed both internationalization and localization, ensuring that application strings and UI components are accessible and usable in Polish. By strengthening accessibility features, Lukasz improved the overall usability of the platform for a broader audience. The depth of his contribution is reflected in the comprehensive coverage of localized content and the technical integration of translation tools.