We mostly do rails apps but one of our 4 projects use elixir/phoenix on the backend and react on the frontend. We are really pleased with the performance of BE

We mostly do rails apps but one of our 4 projects use elixir/phoenix on the backend and react on the frontend. We are really pleased with the performance of BEAM and the functional flavor of elixir clearly leads to code that is easier do read and to test. We have been toying with Elm lately.