3 ways a Chromecast fits into my self-hosted smart home
I know, I was surprised at first too.

I've been on a push to get as many things in my smart home controlled by open-source, self-hosted programs, which I've largely accomplished with hours of configuration in Home Assistant running in a VM on my NAS. For devices that have a Home Assistant app, it's mostly smooth sailing, and I've got voice control set up as well.