Comment by dnautics

you can use zigler for a c nif, using easy_c (or c_src) options.

the big advantage is that it will automatically box/unbox to/from c values for you and generate sane error messages (which rustler does not, last i checked) when you pass incompatible terms in to the function.

on the other hand rustler lets you precompile (which is coming in a future version of Zigler)