Corollary Question: what do people with prior experience scaling Elixir/Phoenix think about scaling with it?

I've read very strong reports favorable of it. For instance, it also can be scaled using progressively better hardware (like better CPU or more RAM), or horizontally scaling too. that Also that with a database on the same network, there won't be much need for a cache. Presumably, ability to throw CPU and RAM would lessen some needs for queue too.

At the same time, I don't notice much Elixir usage in practice and it has remained a small community.