What do you mean by pushing it to the limit? And do you have any insight of what’s it’s like to be on call with Elixir? From what I saw it has many great tools to debug problem. Also the “it never crashes” is quite appealing.
On call is great. Tail latency (p99.9 and up) is great, much better than Java, due to per-process vs stop-the-world GC. Remote console is a superpower, lets you debug in production. Minor flakiness tends to get handled silently be supervised processes crashing and getting restarted. Elixir stuff just pages us much, much less than other languages.