koffi

Fast and simple C FFI (foreign function interface) for Node.js

net-keepalive

Provides high-level access to socket options like TCP_KEEPIDLE, TCP_KEEPINTVL, TCP_KEEPCNT

ffi-rs

A module written in Rust and N-API provides interface (FFI) features for Node.js

@jellybrick/ffi-napi

A foreign function interface (FFI) for Node.js, N-API style, with "v8::ArrayBuffer::GetBackingStore" patch