https://github.com/Uzi-Granot/QRCode
https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-Csharp-Class-Library-f
https://www.codeproject.com/info/CPOL.zip
Apache License 2.0 — this package contains no license validation and no runtime limits. See LICENSE. A few companion packages are commercially licensed with a free tier; see the licensing overview. The wrapped QR Code library retains its own upstream licence (above).