[innocentoldguy]

ZeroMQ is needed by "most major languages," because most major languages suck at concurrency and interprocess communications. Node.js is crippled by its single-threaded nature, as are Python and Ruby; all of which are considered "major languages." Even languages that support concurrency, like Java and C#, are notoriously difficult to get right, due to issue with OOP and state.

Elixir and Erlang make writing concurrent applications easy, and they already have built-in mechanisms, which are better than ZeroMQ, for handling the type of communications that Node folks MUST turn to ZeroMQ to get. Using ZeroMQ in an Elixir application is like installing a gas tank into an electric car, just because they work so well in cars with combustion engines. Completely unnecessary.