Install cl-alexandria by entering the following commands in the terminal:
sudo apt update sudo apt install cl-alexandria
Collection of portable Common Lisp utilities
alexandria is a collection of utilities in the public domain for Common Lisp . It is a library but also a project that aims to reduce duplication of effort and improve portability of Common Lisp code according to its own idiosyncratic and rather conservative aesthetic. . It is used by other projects as a base to build on.