During December 2024, Andrey contributed to the telegramdesktop/tdesktop repository by addressing a targeted UI issue in the Passport panel. He implemented a precise fix that updated the country selection label from “Citizenship” to “Residence Country,” ensuring the interface accurately reflected the underlying data model. This adjustment improved data accuracy and reduced potential confusion for users, supporting better analytics and internationalization. Working in C++ and applying his skills in UI development, Andrey delivered the change through a single, well-documented commit. The update maintained main branch stability, demonstrating careful attention to detail and a disciplined approach to incremental, production-safe improvements.