Slave-in-the-Magic-Mirror - Open source implementation of AirPlay Mirroring. WIP.
In short: Apple has a thing that lets you show what's on your iPhone or iPad or Mac on your Apple TV. This lets you see it on your Linux or Mac computer or media center too, maybe. AirPlay Mirroring uses a funky mish-mash of standards wrapped in some DRM. Slave in the Magic Mirror packs the audio and video data into a standard media container and hands it to VLC. The DRM is handled by calling into the original Apple TV server binary using a pure-python ARM interpreter.