SLIME

SLIME (Superior Lisp Interaction Mode for Emacs) is an extension for the Emacs text editor that provides an interactive development environment for the Common Lisp programming language. It allows developers to connect to a running Lisp process, evaluate code, inspect objects, debug programs, and manage projects directly within Emacs.

This tool is designed for Lisp programmers who use Emacs as their primary development environment. It streamlines the Lisp development workflow by integrating common tasks like compilation, debugging, and code evaluation into a single, interactive interface, enhancing productivity for Lisp-based projects.