Martin Zbořil delivered Czech language support for the sniffnet application, focusing on internationalization and localization using Rust. He updated the translations_2.rs file and related localization resources, adding comprehensive Czech string entries for UI terms, messages, and status indicators. Through five coordinated commits, Martin ensured full coverage and consistency across the user interface, improving accessibility for Czech-speaking users and preparing the app for future localization efforts. His work demonstrated proficiency in Rust-based i18n workflows, resource management, and localization testing, addressing the need for broader language support and laying a solid foundation for additional locale integration in the repository.