Running (SLIME User Manual, version 2.28)

### 2.4 Running SLIME

SLIME is started with the Emacs command `M-x slime`. This uses the `inferior-lisp` package to start a Lisp process, loads and starts the Lisp-side server (known as “Swank”), and establishes a socket connection between Emacs and Lisp. Finally a REPL buffer is created where you can enter Lisp expressions for evaluation.

At this point SLIME is up and running and you can start exploring.