Worked on the NotAShelf/nvf repository to enhance clipboard evaluation reliability by addressing a bug related to type safety. The solution involved converting clipboard.registers from a string to an enum, leveraging Nix and skills in enum management and error handling. This approach enabled earlier detection of typos during evaluation, reducing the likelihood of runtime errors and improving the debugging process. The change was delivered as a single, co-authored commit, focusing on maintainability and laying a foundation for safer future refactoring within the clipboard subsystem. The work demonstrated careful attention to type correctness and robust error prevention in Nix-based systems.