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Someone Put Facial Recognition Tech onto Meta's Smart Glasses to Instantly Dox Strangers
(www.404media.co)
This is a most excellent place for technology news and articles.
Im sure you could find a usb c camera that could easily be obscured or pinned to a lapel or otherwise disguised for cheaper than the price of a pair of smart glasses, or even just wear your phone on a lanyard around your neck with the screen facing your chest. People might think its weird but noone is going to second guess it unless your phone is in your hands actively pointing at them.