Airlines can use QR Codes in confirmation emails and app messages for quick seat upgrades, baggage add-ons, or insurance purchases. Hotels can use them in pre-arrival messages so guests can choose ...
Vibe coding sounds effortless, until it isn't. Building a full iPhone app with Claude Code showed me why baby steps, backups, and testing matter.
In a hotel lobby, two QR Codes promote the same thing: a 10% discount on the breakfast buffet. One sits at eye level beside the elevator buttons, right where guests wait with their phones in hand. The ...
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