Hello! Let us have another Friday social topic.

What type of problems do you solve using Lisp? Please share these details while answering:

• Which dialect of Lisp do you use?
• What problems do you solve?
• Why do you choose Lisp to solve these problems?

I have a feeling that this thread might get inundated with too many Emacs Lisp posts about solving personal productivity problems. That’s fine. But I suggest posting stuff about other dialects of Lisp too. The more dialects of Lisp (CL, Clojure, Racket, etc.) are discussed here, the better! We want to have a good variety of answers on this thread.