There are a couple cool options here (which I know you’re well aware of @jeubanks, from your activity on the thread). Adding this for others looking at your post - here’s a link to a cool GH relay option. Includes ability to send broadcasts (e.g., The garage door is opening) as well as custom commands (e.g., What is the weather today or other questions you might ask GA/GH). Also integrates Nest cam streaming to cast devices. I’m kinda in love w/this capability. (Requires “always on” laptop, pi raspberry, or other device running node.js.)
One thing you may like w/GH is you can create shortcut commands in the GH app…take a look at Menu> More Settings> Shortcuts. Might be useful to you/family to simplify GH commands.
(Requires “always on” laptop, pi raspberry, or other device running node.js.)