Is it explicitly stated somewhere that you can't cast from a linux box with Chrome installed? It let me install the Chrome extension on Linux at least.
> Chromecast is compatible with WiFi-enabled Android 2.3+ smartphones and tablets; iOS 6.0+ iPhones, iPads, and iPods; Chrome for Mac® and Chrome for Windows®; and Chromebook Pixel. Power cord required (not shown).
Most hardware specs don't mention anything about linux compatibility, even if it does work. Because unfortunately, the overwhelming majority of people don't use linux :(
The specs for my mouse, speakers, microphone, keyboard, and monitors all don't mention linux. Some of them don't even mention mac. And with the exception of my keyboard and mouse, they all work on linux (and the mouse sort of works, just the DPI gets wonky as hell).
I don't know for sure, but I can't imagine this not working on linux.
