Hey Tom,
While I cannot compare your two sources, I am rather curious about your planned usage of Elixir. Can you tell us an example of what you are planning to build?
As I understand (and have practiced) them, microservices are usually single-core laser-focused tools that do one thing really quick and rarely are complex projects. As such, languages like Go or Rust or OCaml (or even C++) are usually better suited for those kinds of projects.
The BEAM VM apps, in which Erlang and Elixir live, are usually much better used for more complex applications and services that coordinate / orchestrate a lot of others, and do a lot of work themselves.
