During August 2025, Baer Wang authored ecosystem documentation for the tokio-rs/axum repository, focusing on integrating OpenAPI-RS with Axum to enable automatic request validation and processing based on OpenAPI specifications. The work involved creating a dedicated ecosystem.md entry that guides users in leveraging OpenAPI-driven workflows within the Axum and tokio ecosystem. Baer utilized Rust, Markdown, and documentation best practices to ensure clarity and traceability, aligning the new documentation with existing OpenAPI-RS resources. This contribution addressed onboarding and discoverability challenges for developers, providing a clear technical pathway for integrating OpenAPI specifications into Axum-based projects without introducing new code features.