A very interesting language on powerful platform with a promising web framework. Many saw it, myself included, as a Ruby / Rails Improved, and expected its quick growth. Unfortunately, initial enthusiasm a few years ago did lead to its wide adoption. I talked with a couple of companies that jumped on it initially, but later decided to move to Java, Kotlin, Go. The main reason was difficulty to hire engineers to scale…
Based on the recent formation of Dashbit [1] and larger companies like PepsiCo (?!) among others openly jumping onboard I think means Elixir has reached a clear point of sustainability for those willing to find (and train!) devs. Likely it'll never be RoR level, but I'm fine with that if it keeps the dev community more selective. Functional programming in general seems to be a bit of a self-selector.
1: https://elixirforum.com/t/jose-valim-announces-his-new-elixi...