Oppo 203 as endpoint without video

I want to use the Oppo 203 as an audio only endpoint using optical output to my receiver and display Roon though my projector via Chromecast. I like Roon’s display with lyrics better than the plain blue screen of the 203. Has anyone done this? I’m asking first because it’s a major pain to pull my audio rack out just to find it won’t work. I’ll use the receiver to select HDMI of Chromecast and optical input from the 203.

Thanks.

Well, I feel silly. I already had this setup and working at one time and forgot. I had to change the audio input to digital on my receiver. See what you have to look forward to when you get older.