I’m interested to hear how you have done/are doing this. This was the reason I had to migrate the keypad from OZW to my Vera.
I have a household with wife, three kids, cleaning lady, nanny etc. All Home/away/arming is totally automatic and for a large degree dependent on phones.
Main main issue was that HASS does not (did not?) get a ‘last updated’ value. I described the problem here
So even if the alarm was disarmed and the cleaning lady would come in and she would use her RFID tag for coming in and leaving I wanted to make sure all was kept in sync. If I would do a RFID disarm while it already was disarmed I would have no way to catch that in HASS as the panel would not send anything to hass I could use to know there was a succesfull RFID tag used.
Anyway, curious to find out how you did this.