Worked on the Shopify/roast repository to enhance reliability and maintainability in a Ruby on Rails environment, focusing on DSL development. Addressed graph initialization in the Roast DSL by refactoring the setup to pass the name and an empty proc to the superclass, which improved the consistency and correctness of graph object creation while reducing initialization errors. Additionally, introduced typed and frozen string literal directives in simple_chat.rb, aligning the codebase with Ruby best practices for performance and safety. These targeted improvements laid the groundwork for future scalability and refactoring, emphasizing code quality and maintainability through careful Ruby development techniques.