As sort of an aside, that can be an interesting lens to view hiring through. A while back I was looking around, and since I have some history with Erlang, was looking for roles involving Erlang and Elixir, among other things. I've architected and written production Erlang code that's deployed in products and know the system fairly well. But I don't have a lot of Elixir experience.

Some companies were like "wow, that's a lot of BEAM experience - let's talk!".

Others were like "my checkbox says Elixir, sorry".

I'm old enough at this point to realize the latter were doing me a big favor.