Just me personally, I probably wouldn't do it in anything else... Not that there aren't some other good options out there depending on your background. I just prefer Elixir, I know it scales in both maintenance and performance (the former being the more difficult goal in my mind) I think the market is growing such that finding engineers who a) have experience, or b) want experience with it, won't be a real problem. I can tackle software and hardware problems alike, there are good options for integrating native code when performance counts, and in general I consider it to be the safest option available to me.