is this sentence still correct in the README?

A C compiler, system headers, Python headers (to compile native Python modules) and the

libffi

library and headers (to compile and link modules that use CFFI to access native code).

does the

cpython

rust crate use

libffi

? i think it doesn't right? so python headers from

pkg-config

should be all that's necessary? cc @witty-crayon-22786

it does not… so yea, the

libffi

snippet is stale