I love Rust elixir Nifs. Gives you the best of both worlds to be honest. Highly fault tolerant code with fast computation. Only downside is that it can't really handle extreme crashes like a native process can.
Erlang/Elixir + Rust is an awesome couple. For the downside you mentioned, depending on the use case, it could be interesting to use Rust as a node: https://github.com/sile/erl_dist
