Andrey worked on the nextcloud/integration_gitlab repository, focusing on enhancing GitLab integration by implementing label propagation from issues and pull requests into project labels. He refactored avatar fetching to use direct HTTP client calls, improving reliability for both user and project avatars. Using PHP and backend development skills, Andrey introduced error logging for avatar fetch failures and added authentication handling for private GitLab instances, which reduced frontend errors and improved maintainability. His work addressed label synchronization and robust error handling, resulting in a more consistent user experience. The depth of the changes reflects a strong understanding of API integration and system reliability.