Worked on the nix-community/home-manager repository to implement platform-aware keybindings, enhancing configuration flexibility for users across macOS, Windows, and Linux. Leveraged Nix and configuration management skills to introduce freeform JSON attributes within the keybindings submodule, allowing per-OS overrides by setting freeformType to jsonFormat. This approach centralized platform-specific bindings, reducing the need for scattered conditional logic in user configurations and aligning with established VS Code keybinding conventions. The work improved maintainability and user experience by streamlining how keybindings are managed, providing a clear structure for future contributors to extend or modify platform-specific editor behaviors as needed.