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How to create a QR clock-in system for a small business?

I am not really sure where to ask this, but I want to try and build this as my first attempt at no-coding.

The idea in my head is simple:

Workers scan a QR code on the wall using their phones.
The time they scan in and scan out feeds through to an excel spreadsheet where you can track the information.

So I am thinking Airtable for the spreadsheet but what to use to be able to bring a QR code and Airtable together? Also is it even possible?

Thanks in advance for any help.

Kind regards,
Joe

on December 15, 2020
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    It is not good idea...because qr code is static data...What if worker have QR image in their mobile...They can start their time from home

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    You need to display the qr code on a screen and change it based on time but in a secure way so you can't easily change the time in the decoded url. That way the url can't be saved and reused. I'm a developper so I don't know if nocode tools are able to generate new urls to be encoded to qr dynamically. Just commenting to find a solution to concern raised in previous comment.