Common Lisp is chosen for code generation due to its unique features and capabilities that may not be present in mainstream languages like Python, TypeScript, or Java. The use of Common Lisp allows for more specialized and nuanced coding practices despite the larger training sets available for more popular languages.

Common Lisp development environments consist of various tools that help streamline the programming process. Understanding the purpose and function of each component in the development stack can facilitate a smoother setup and enhance the learning experience for beginners.