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Install any version of the GNU operating system or a *BSD (or actually GNU Emacs). Then install SBCL (Steel Bank Common Lisp) or Chicken scheme/Guile/Racket/...
I also recommend reading the relevant sections from Common Lisp Cookbook ( https://lispcookbook.github.io/cl-cookbook/getting-started.html ) sidenote: Common Lisp Recipes: a Problem-Solution Approach is also a good book