https://www.vice.com/en_us/article/bvm5p8/users-are-building-their-own-ai-powered-alternatives-to-amazons-ring-cameras

Tired of annoying walled gardens and widespread privacy abuses, a growing number of consumers are building their own alternatives to Amazon’s home surveillance system, Ring. In many instances, the home-rolled solutions have most or all of the benefits of Ring—but without being owned and controlled by one of the largest and creepiest megacorporations on the planet.

While it requires a little extra work, third-party cameras, NAS (Network Attached Storage) devices, or dedicated NVRs (Network Video Recorders) can be combined to build Big Tech home surveillance alternatives that can scale depending on the budget.