[hibbitybibbity]

Elixir/Erlang is best for building long-running systems that you don't want to go down. Erlang's creators optimized for stability (phone systems) and sort of reinvented concurrency and distribution in support of that goal. There are some great talks by Joe Armstrong about this on YouTube, highly recommend!

For CPU-bound tasks and number crunching you can always just write it in Rust (or C or Zig) and NIF out to it from Elixir.

As a dev who builds apps that are served over the internet, it covers everything I need. Maybe that's a specialty niche.