Libuv


 * repository
 * famous as I/O library of in node.js
 * used as modern I/O library backend like rust

Document

 * uv.h
 * uvbook

Bindings

 * mruby binding
 * not memory efficient
 * doesn't use MRB_SET_INSTANCE_TT for RData

OS X(iOS) framework dependencies

 * In latest unstable release(0.11.x) OS X's framework dependencies is removed
 * Thanks to the following 2 patches:
 * CoreServices dependency remove
 * CoreFoundation dependency remove