Common Lisp Development Tooling

The article provides a beginner-oriented, bottom-up guide to understanding Common Lisp development tooling. It explains why each layer of the development stack exists rather than just how to install it, addressing the fact that Lisp's interactive development model makes its toolchain fundamentally different from modern languages like Python or JavaScript. The goal is to give newcomers a mental map so they can debug setup issues and make informed tool choices at each layer.