If you're unfamiliar with Mixer, it's a livestreaming site much like Twitch, but with a design built heavily around viewer interaction. They developed a video streaming protocol that delivers sub-second delay, have an "interactive mode" for livestreams, and more.

I think it would be awesome to have a widget to embed Mixer video/chat/interaction modules on our profiles! It would be a good compliment to the Twitch and YouTube widgets, given Mixer's growing popularity.