Worked on the tonkeeper/ton-assets repository to modernize token configuration management, focusing on integrating the Gatto Game Token and deprecating the legacy GATTON token. Developed a new YAML configuration file to support the upcoming token while removing outdated configuration to streamline future updates. Emphasized backend and blockchain development practices to establish a clear deprecation pathway, reducing configuration debt and minimizing risk for token-related changes. The approach centered on robust configuration management, ensuring readiness for future token features and integrations. Utilized YAML for configuration and applied backend engineering principles to align the repository with evolving blockchain asset requirements and maintainability goals.