I was really, really hoping this was about enabling emacs to be scripted via siri shortcuts. (Though this is super useful, too).
Honestly, just being able to set emacs full/split screen via a siri shortcut (and hence, any Shortcut script) would be unbelievably useful for automating pieces of my workflow.
You may find this osx tiler useful. These days I can't live without it and it's been stable for me for quite some time.