[vldo]

You can use mkchromecast for that: https://mkchromecast.com/#installation Also you can go further with it and cast from airplay devices: https://github.com/philippe44/AirConnect

I have airconnect on a raspberrypi so I don't have to keep my laptop on and I can play songs from my iphone that way, just stream to chromecast audio. It's also worth mentioning it works a bit better than mkchromecast but it depends on your wifi.