But this gives you the functionality of a $200 system (Nest, Ring, etc) for ~zero cost, and not all property owners will approve a Nest camera on their porch.
Seems to me a QR code removes the $170 bit that was a key part of the Ring camera value proposition.
And for people who do not live in high-crime areas, but might want the other features of a Ring camera, the value distribution would necessarily be different.
https://www.honeywellstore.com/store/products/portable-wirel...