Worked on the Homebrew/brew repository to enhance OS-level feature detection by refactoring the WSL check. The approach involved moving the wsl? boolean from the OS::Linux module to the main OS module, which centralized WSL detection logic and reduced cross-module dependencies. This change enabled consistent WSL checks across Linux, macOS, and Windows contexts, improving both maintainability and testability of OS features. The work was implemented using Ruby and focused on backend development within the Ruby on Rails ecosystem. The refactor laid the foundation for broader cross-OS support and improved code organization through module-level isolation and clearer feature boundaries.