Worked on the tonkeeper/ton-assets repository to deliver a branding update for the Block Card Mini-App, focusing on aligning the configuration with new brand guidelines and updated social media links. The work centered on precise configuration management using YAML, ensuring that the changes were cleanly integrated without introducing regressions or instability. Leveraging blockchain development expertise, the update maintained the integrity of the existing system while enhancing branding consistency across the mini-app. No major bugs were reported during this period, reflecting a careful and targeted approach to configuration changes. The contribution demonstrates attention to detail and a methodical engineering process.