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Messenger codes: https://itunes.apple.com/us/app/scan-code-editor-for-messenger-codes/id1148316864?mt=12 https://itunes.apple.com/us/app/scan-code-editor-for-me

• luisrudge 8y ago
  I’m wondering how can I build a custom qr code like those for my own project, but thanks for the link
  • ribasushi 8y ago
    https://research.swtch.com/qr/draw https://research.swtch.com/qr/draw