Is this possible with rule machine? I want to do an action if all presence sensors are not present (arm alarm) but I only want to send the last person who left an alert (via pushover). Assume both folks have a pushover device in HE. I currently do this now with a custom web endpoint ok a another server, but I'm quickly finding I don't need extra services and scripts to these things as HE is so powerful and flexible.
Any suggestions? Thanks!