For I/O, concurrency, fault tolerance, and distribution it really doesn't get better than the BEAM, but when problems get CPU intensive you can't beat C/C++/Rust. So this idea of using pre-compiled Rust NIFs from Elixir is a huge deal because it means you can have the best of both worlds in many scenarios.
Clean modern language with top tier tooling as a coordination layer and API + bare metal speed without needing the full Rust tool chain on every dev's computer. <3 <3