QR codes are handy, right? You can encode text into a pixelated image with lots of dots and when you scan it on your phone you get your text back. In this tutorial we create a QR code generator with only 3 lines of code... well, technically it's just 1:https://lazplanet.gitlab.io/2021/12/generate-qr-codes.html
Here is a screenshot of the finished project:
The article is beginner friendly so anyone can start with this. Also has project source code available as download if you are in a hurry.