This will be major as a home assistant integration. Right now the nest camera component is broken due to the recent Nest=>Google migration. This has broken streaming nest cam footage for everyone that migrated. I'm actually surprised a 3rd party has actually gotten support for nest cam stream API before home-assistant itself.

Anyways, when it comes to security cams in the consumer space you have

Low: Wyze, Yi, other Chinese Mfgs Mid: Ring High: Nest

But I think the major money is in the prosumer space: The custom Dahua (Lorex/Flir) or anything with an NVR. Massive false positive rate, bad detection algos, shitty software. Have you seen Lorex's Rapid Recap feature? Definitely cool but too expensive. Also Dahua NVR's have had security concerns too

Rapid Recap: https://www.youtube.com/watch?v=ZIWnQ9arSJg CCTV Hacked: https://www.youtube.com/watch?v=A9ea9fllnME

Smart local secure powerful NVR replacements is what business + prosumer home owners are looking for, good thing is that most IP cameras are running on a handfull of standards, instead of a seperate API for each brand.

How did you get access to the NEST API streams?