Mitch contributed targeted improvements to Homebrew’s core formula repositories, focusing on library compatibility and upgrade workflows. Working in Ruby with CMake and package management tools, Mitch updated the libid3tag integration in gittools-bot/homebrew-core, aligning it with the latest upstream version and clarifying build dependencies to streamline contributor onboarding. In chenrui333/homebrew-core, Mitch delivered a clean upgrade to libid3tag 0.16.4, updating source references and removing legacy patches to maintain build stability. The work emphasized maintainability and clear documentation, resulting in more reliable macOS builds and a smoother experience for future developers maintaining or extending Homebrew formulae.