I had so much fun with my previous HomeBridge adventure that I went looking for additional plug-ins I could add. I found the HomeBridge SoundTouch plugin, and installing it could not have been easier.

First, I killed the homebridge process:

launchctl unload ~/Library/LaunchAgents/com.homebridge.server.plist

Then, I downloaded the plugin:

sudo npm install -g homebridge-soundtouch

Finally, I had to modify my config.json file (~/.homebridge/config.json). I included this before the final }:

"accessories": [
        {
            "accessory": "SoundTouch",
            "name": "Kitchen Speaker",
            "room": "Kitchen"
        }
    ]

(Kitchen is the name of the speaker as configured in the Soundtouch app, and Kitchen Speaker is how I want it to appear in HomeKit. The word speaker may seem redundant, but it’s useful, since HomeKit doesn’t actually know it’s a speaker — it just thinks it’s a dumb switch.)

Finally, I restarted the homebridge process:

launchctl load ~/Library/LaunchAgents/com.homebridge.server.plist