Developed and maintained a YAML-based metadata configuration for the Butterfly (BFLY) digital asset within the tonkeeper/ton-assets repository, focusing on configuration management and digital asset management. The work involved creating and refining the BFLY.yaml file to ensure accurate representation of asset properties such as name, description, image URL, address, symbol, and social links. Emphasis was placed on metadata accuracy, maintainability, and clean version control practices, with iterative improvements to asset descriptions and external links. This approach established a reliable and consistent asset metadata model, reducing the risk of data errors and supporting seamless asset listings across multiple platforms.