Worked on the NotAShelf/nvf repository to extend the blink-cmp completion plugin by introducing a new command-line preset type, enhancing the flexibility of keymap configuration for end users. Focused on configuration management using Nix, the work centered on enabling command-line driven workflows and ensuring the new preset type was properly recognized and loaded during plugin initialization. This update broadened the plugin’s applicability for advanced workflows and reduced setup time for users. The engineering effort was concentrated on a single, well-scoped feature, with careful attention to integration and reliability, resulting in a robust extension without introducing new defects or regressions.