Everything? The full projects are in lisp syntax (s-expressions), not Algol-like syntax (C-like syntax) that most people are familiar with. Personally I mostly

Everything? The full projects are in lisp syntax (s-expressions), not Algol-like syntax (C-like syntax) that most people are familiar with. Personally I mostly use Clojure, but lots of lisp-like languages offer the same (simpler) experience of programming.