Worked on the clash-verge-rev/clash-verge-rev repository to enhance backend subscription data handling by implementing support for custom subscription metadata headers in HTTP responses. Focused on adding robust parsing for headers such as x-oss-meta-subscription-userinfo, enabling more accurate extraction and utilization of subscription-related information for downstream personalization and analytics. Strengthened configuration logic to enforce stricter header matching, reducing the risk of data misinterpretation. Collaborated closely with teammates to integrate and review these changes, ensuring code quality and maintainability. Utilized Rust for backend development, applying strong type safety and configuration management practices throughout the feature’s design and implementation process.