Hi all, We just released the source code of the exercise environment that OCamlPro developed for the first session of the OCaml MOOC. It includes the whole platform (code editor, toplevel, automatic grader), and a few demo exercises. You can download the source (mostly LGPLv2, some parts under GPLv2): https://try.ocamlpro.com/fun-demo/tryocaml-fun.tgz We also put a standalone demo in which you can try a few exercises: https://try.ocamlpro.com/fun-demo/tryocaml_index.html More details are available here: https://try.ocamlpro.com/fun-demo/ Regards, Benjamin Canou.