Open QR_Creator.html in a desktop browser. It includes its QR library and emblem and works offline. Enter the approved business details and the assigned live location check-in URL. Generate the sign, test the destination and its check-in record, then download or print. No check-in backend is created or connected by this file.
The campaign information QR elsewhere in this kit opens https://elvesacrossamerica.com and does not record location check-ins.
QR library: qrcode-generator 1.4.4 by Kazuhiko Arase, MIT license. Source: https://github.com/kazuhikoarase/qrcode-generator