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Apple might be working on a smart doorbell | TechCrunch
(techcrunch.com)
This is a most excellent place for technology news and articles.
Apple is pretty much the only company in the smart home space right now that not only allows, but requires that devices be able to function locally, without having to call home. They CAN call home, but they continue to work just fine locally if say, the internet is down. It’s a central tenant of their homekit standard.
Shhhh, you’ll derail a perfectly good hate-train with that kind of information.
It's also misleading. Pretty much all zigbee devices work locally just by the nature of the protocol, so any company that makes those automatically has that feature.