Jordan Liggett modularized Zstandard compression support in the prometheus/client_golang repository by isolating zstd logic into a dedicated promhttp/zstd package. Using Go and leveraging skills in compression and package management, Jordan introduced an internal interface to decouple zstd dependencies from the core promhttp package, improving maintainability and enabling isolated testing. This architectural refactoring laid the groundwork for future integration with the Go standard library and facilitated easier extension of compression backends. The work focused on long-term maintainability and flexibility rather than immediate bug fixes, demonstrating depth in refactoring and a forward-looking approach to evolving compression support within the codebase.