• Strangely enough Jinterface is only mentioned in passing in the overview of the guide.
• Recently Erlang Solutions added Pyrlang.
• An older blog post about how to use ports to interact with Ruby The Erlangelist: Outside Elixir: running external programs with ports by @sasajuric.

Here is a good article on this for Elixir + Python: https://hackernoon.com/mixing-python-with-elixir-7a2b7ac6696

There’s too a great bridge to Rust that doesn’t crash the BEAM in case of failure: https://github.com/hansihe/rustler

Interfacing works very well and you have plenty of options to do so.

Its best to read the Erlang guide to InterOp.

Its different from the FFI of many other languages where you often can call C-functions more or less directly…

http://erlang.org/doc/tutorial/cnode.html