Zephir is a compiled high level language aimed to the creation of C-extensions for PHP
The low level streaming torrent engine that peerflix uses
Wind Viewer is a level viewer and editor for Zelda: The Wind Waker and (to an extend) Twilight Princess.
Documents to show the low level MiP command protocol, you can implement your own SDK using your preferred language.
High level nodejs framework build on top of expressjs, mongoose, sequilize, socketio and passportjs
inverted-index for level with pagination, sift3/cosine distance, tf-idf ranking, and more
itunes-client provides a high level API (like ActiveRecord style) to control your iTunes.