Over a two-month period, this developer contributed to the nix-community/home-manager and Homebrew/homebrew-cask repositories, focusing on internationalization and package management. They delivered a Japanese localization update for the Home Manager CLI, refining PO files and localization metadata using PO and Ruby, and streamlined the translation workflow with Weblate to improve accessibility for Japanese users. In Homebrew/homebrew-cask, they implemented prerelease packaging for AquaSKK and added uninstall cleanup logic using Ruby and Homebrew’s cask management features. Their work addressed user experience and maintainability, demonstrating depth in localization, version control, and packaging standards while aligning with broader goals of accessibility and reliability.