My QR code/Google Sheets system is probably not as seamless as the products intentionally designed for this type of thing. Still, it was cheap and I am in nearly complete control over the entire ...

Google Messages is rolling out QR code-based key verification to confirm that you’re “communicating with the person you intend to.” ...

QR codes are used just about everywhere now, for checking into venues, ordering food, or just plain old advertising. But what about data storage? It’s hardly efficient, but if you want to sto… ...