#Fediverse !! Need some reccs for low-cost or free software solutions for a friend who has a small business

She wants to digitize her punchcard system where customers buy a card in advance, and come into her shop and pick up the stuff and get part of the card crossed off

Any ideas? I am struggling even what to google...

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@vickysteeves Could try setting up a Mifare NFC system. NFC cards are cheap and can store custom data on them.

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