quagga2 VS html5-qrcode-react

The next level up from that would be to hook up the business-specific frontend to a barcode scanner and at that point not only could both clients & business know what items are available, but also their current stock & availability.

quokka2

I used the zebra crossing app ("barcode scanner") in mass scan mode to scan all my books. The app keeps a history of scanned items and you can export it as CSV. This of course is not very "nice" but a very fast way to scan all your books. There is also some JS implementation for isbn scanning which works ok. It is used by bookwyrm which is open-source (but not free software).

Honorable mention to quagga. No longer actively maintained, but there is an active fork quagga2.

The component used for the camera barcode scanner is quagga2, feel free to improve it or even replace it with another one and provide a pull request if that maybe works better. Also already partly tracked in #737.

The camera barcode scanner component used is quagga2. Scanning highly depends on lighting, the angle and so on and is IMHO generally slow and error prone. I would only use a laser scanner which is 1000 % faster and works under any lighting condition. On my phone I personally simply use the dropdown / search way, since still faster than a single camera barcode scan...

The component used is Quagga2 and there are also some options in data/config.php to tweak it.

You can also use a third-party utility like https://scanapp.org/ to extract the TOTP authentication key from a QR code.

Yet another package extending zxing. The implementation was a bit easier to follow although this seemed to also use an old version of zxing, so I was a bit cautious about using it.