So currently we have Vivint, a doorbell, a thermostat, a keypad lock, and a bunch of door/window sensors.
Would the CTI100 thermostat work with HA if I disconnect it from the Vivint panel? That and the keypad are the two that I am most concerned about (I don't want to have to get new keys). I doubt the doorbell will be much use, so I will most likely pick up a Reolink wifi one that can use the existing power supply and connect that to Blue Iris. Thoughts? I do not want to spend too much money if I can reuse existing hardware without going through the hassle.