Learn how to install Common Lisp locally to solve Exercism's exercises on your own machine
The basic items needed for developing in Common Lisp are:
For people new to Common Lisp, particularly ones with previous experience with Emacs, can get an easy & quick start by installing Portacle, the Portable Common Lisp Environment. Free and full featured, it works in all common platforms and comes preconfigured "out of the box". This will supply:
... with lots of add-ons for writing with Lisp code:
Everything comes already configured out of the box. Install Portacle by downloading from the front page.
Note: Emacs (text editor) can be disorienting at first, if you're not accustomed to it. Fortunately there are many primers on Emacs and SLIME available online.
If you prefer installing the needed tools separately you will need to install and set up: