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That sounds like a disaster waiting to happen when you're talking about customer details.
I would focus on getting a proper, secure, legally compliant (GDPR etc.) system for customer details. Keep an eye out for NFC device compatibility when you're researching that but I'd focus on getting the core system right. It's a lot less disruptive to change the way the output is presented than to migrate customer data to another system or format.
I haven't looked into what's available so I can't recommend anything in particular. |
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