ml@gentoo.org ML utop is an improved toplevel (i.e., Read-Eval-Print Loop or REPL) for OCaml. It can run in a terminal or in Emacs. It supports line edition, history, real-time and context sensitive completion, colors, and more. It integrates with the Tuareg mode in Emacs. https://github.com/ocaml-community/utop/issues/ ocaml-community/utop