Worked on the ZeroWaste repository to enhance the Calculator module’s frontend experience and ensure stable builds. Focused on dependency management by locking platform-specific gems in Gemfile.lock, reducing build inconsistencies across environments. Improved the Calculator page’s user interface using Tailwind CSS, introducing a success background for reusable item buttons and a matte lime hover effect to refine user interactions. Added a new maxWidth configuration to Tailwind CSS, supporting scalable and responsive layouts for future development. Utilized CSS, JavaScript, and Ruby on Rails to deliver these updates, prioritizing maintainability and user experience without addressing major bugs during this development period.