How do I stream to Chromecast using VLC?

I just downloaded VLC 3.0 Beta (using ubuntu ppa) and I wanted to know how to set it up to stream to chromecast. It's in the repo's [NEWS](https://github.com/videolan/vlc/blob/dc1384bb63e6b9779817648a485ae02f5dd0ca65/NEWS) that the feature has been added. [Numerous news outlets](http://gizmodo.com/vlc-is-getting-chromecast-support-1686311413) are covering it. But, there is no example of how to actually use it yet. I know it's not in the GUI (having searched the source code). And, I have no idea how to use the code from the command line. Here is the [Ubuntu PPA](https://launchpad.net/~videolan/+archive/ubuntu/master-daily) that I used to install it. However, it shouldn't matter. Nor, should the OS or system matter. It's just software. You can build it yourself or [download a binary ("nightly") here](http://nightlies.videolan.org/) .