Frankly I've got no coding ability whatsoever, so I could just be messing this up. But I got an error when I loaded up the script.
[obs-zoom-to-mouse.lua] Failed to call frontend_event_callback for frontend API: [string "/Users/[x]/Downloads/obs-zoom-to-mouse.lua"]:556: attempt to call field 'obs_sceneitem_get_info' (a nil value)
Not sure what that means! But it's what I've got. haha