Hi! Cool project, I love to use Pi Zero and I am a big fan of RPi. I also use it in my home automation system and alarm. One of my Pi Zero works quite nice and smoothly as element of home system with attached motion sensor, temp sensor and the camera. It easily handles one room :) Great job! I'll post some of my project soon. You should post more of your works, I bet you have something :)
RE: How to do Raspberry Pi Zero Surveillance with Ruby