In some cases it might be worth the effort to extract such performance hotspots out of the BEAM and access them over port, NIF or socket. I'm not a fan of FFI

In some cases it might be worth the effort to extract such performance hotspots out of the BEAM and access them over port, NIF or socket. I'm not a fan of FFI stuff because I'm a simpleton, but have had an easy time incorporating both Python and Java in Elixir systems.