We use Elixir/Phoneix at Papercups for our backend. Good: * Friendly developer community and very active Slack channel * Makes websockets much easier to get

We use Elixir/Phoneix at Papercups for our backend. Good: * Friendly developer community and very active Slack channel * Makes websockets much easier to get started * We like the simplicity of Phoneix framework (We avoided rails because we didn't like the magical parts at times) Bads: * I miss types (We at least use TS in the frontend) * Deployments are more complicated and I had some trouble figuring out the build release process. We had no familiarity with Elixir when we started. We decided on Elixir since we thought it went very well with email messaging. We've been wanting to try elixir and realized that if we didn't use Elixir then we would never switch.