Joe Shaw worked on the fastly/Viceroy repository, focusing on backend development and testing using Rust. He delivered a targeted update to the KV Store by refining the key naming validation logic, ensuring that key names now strictly adhere to Fastly’s documented restrictions. Joe updated the is_valid_key function to enforce disallowed characters and Unicode limits, and revised integration tests to reflect these new constraints. This work improved data integrity and reduced potential misconfigurations by aligning implementation with official documentation. The depth of his contribution is evident in the careful, test-driven approach and the precise handling of validation edge cases.