Building a Web App in Emacs, Common Lisp and ClojureScript

HN commenters point to it as a live demonstration of interactive Lisp development, including compiling single functions in a running program and debugger-driven workflows.

Elias Martenson presents his Emacs-based workflow for building a web application (the Potato chat platform) with Common Lisp on the backend and ClojureScript on the frontend. He demonstrates SLIME, Paredit, CIDER and debugger-driven interactive development. The talk is 79 minutes and was given at Emacs SG.