QR codes are normally scanned and decoded by phones. But not always, if you're a developer. Then you find a nifty way to do it on your laptop without camera's, and then write a blog about it.

https://vazaha.blog/en/26/how-to-scan-qr-codes-without-camera-or-phone
#foss #opensource #qr #zbarimg #flameshot #imagemagick #blog