At the small prize of parallelism. And now that you are dealing with workers, task queues, etc. a native process + supervisor solution doesn't seem bad at all.
All I'm saying is that there are things that Elixir isn't the best at. Is that so weird? I feel like everybody responding to me has this strong emotional need to defend Elixir. Why? it's just a tool. Like any tool it has pros and cons.
https://github.com/fazibear/export and https://github.com/hansihe/rustler