​Good news everyone! ​You no longer need to rewrite Emacs from scratch to
​be able to hack it in OCaml.

You can now use Ecaml, a library for writing Emacs plugin in OCaml:

    https://github.com/janestreet/ecaml

It is using the new Emacs 25 support for loading dynamic modules
​.​
​ We successfully used it to run ​Async code as well as expectation tests
inside Emacs.

​Y​
ou can install
​Ecaml​
 using our development opam repository:

    opam
​repo add janestreet https://github.com/janestreet/opam-repository.git
    opam ​install ecaml

​Enjoy!​

--
​ ​

Jeremie
​ Dimino, for the Core team​