Worked on the Puma/puma repository to enhance the robustness of the request and response pipeline, focusing on backend development and testing using Ruby. Addressed a bug where request bodies could have a nil to_path, preventing potential nil dereference errors during request handling. Improved the reliability of streaming by ensuring response bodies are read as bytes rather than characters, which mitigates encoding-related issues. Added comprehensive tests for pipe body handling across HTTP/1.1 and HTTP/1.0, increasing coverage for edge cases. These changes contributed to greater stability, reduced production incidents, and improved maintainability for middleware integrations in diverse deployment environments.