I think Elixir/Erlang is uniquely positioned to get more traction in the inevitable microservice/kubernetes backlash and the return to single server deploys (with a hot backup). Not only does it usually sip server resources but it also scales naturally as more cores/threads are available on a server.
Going from an Erlang "monolith" to a java/k8s cluster, I was amazed at how much more work it is takes to build a "modern" microservice. Erlang still feels like the future to me.
While individual Node.js processes are single-threaded, Node.js includes a standard API that distributes its load across multiple processes, and therefor cores.
