Delivered full Czech localization for the oreplay-frontend repository, translating all user interface strings to enhance accessibility and onboarding for Czech-speaking users. Leveraged JSON for translation files and integrated Weblate to manage the translation workflow, ensuring traceable and organized commits. Established a documented process for future locale updates, which reduced the localization backlog and prepared the project for ongoing multilingual releases. Demonstrated skills in internationalization and localization by coordinating translation coverage and maintaining version-control discipline. The work focused on frontend localization, enabling the application to support Czech users more effectively and laying the groundwork for streamlined updates in additional languages.