Allow some Mac settings to be controlled as "devices" in Home Assistant

[ndbroadbent]

I use the Mac binary sensors to automatically turn on my ring light whenever the camera turns on. (Just like the video shown in the Mac app release blog post.)

I realized that it would be really cool if I could use Home Assistant to control some other settings in my Mac, based on internal and external sensors.

Example: I use a CalDigit TS3 Plus dock in my office, and I have some wired headphones plugged in to the headphone jack. I'd like to automatically switch the audio output to my headphones whenever I'm on a Zoom call (i.e. whenever my Mac camera is active), and switch back to the Mac speakers when I'm just listening to music.

I was hoping that I could set up a quick automation (or flow in Node-RED) to get this working via Home Assistant, but it looks like the Home Assistant Mac app only provides sensors. It would be awesome if it could also provide a few "devices" that could be controlled via Home Assistant.

Example of how it could look in the Node-RED flow that controls my light (the two audio device blocks at the bottom):

Ideas for "devices" that could be provided by the Mac app:

• Sound output device
• Sound input device
• Sound volume
• Display brightness
• Keyboard brightness
• Do Not Disturb mode
• Airplay
• Screen mirroring

E.g. Options in the Control Center:

I think this could be a great addition. Please let me know if you might be open to adding this, and if so, I might have some time to tinker around and work on the code. Thanks for your time!