** SHOW NOTES *** https://github.com/ElixirTalk/elixirtalk/issues/44* https://github.com/akoutmos/pharams* https://github.com/vic/params* https://github.com/jonasschmidt/ex_json_schema* https://github.com/bitwalker/libcluster* https://www.youtube.com/watch?v=L2_MUD16EIk