Vertico

Vertico provides a performant and minimalistic vertical completion UI based on the default completion system. The focus of Vertico is to provide a UI which behaves /correctly/ under all circumstances. By reusing the built-in facilities system, Vertico achieves /full compatibility/ with built-in Emacs completion commands and completion tables. Vertico only provides the completion UI but aims to be highly flexible, extendable and modular. Additional enhancements are available as #extensions or #complementary-packages. The code base is small and maintainable. The main ~vertico.el~ package is only about 600 lines of code without white space and comments.