There are JS barcode libraries out there, some better than others, some free, others paid. A few years back at a corporate job I built just the thing - a web app designed to replace a 3rd party mobile app. The back-end was Laravel + various AWS services, with a responsive front-end made with Tailwind.

The requirements were to make it mimic most of the mobile app’s functionality. There was also location tracking via browser APIs (to track the cargo at all times) and a barcode scanner. I used a paid library for that, and it was quite expensive, but very reliable. So it can definitely be done as a web app.

I’m one of 'em. Killing Sync (and every other awesome 3rd party client) was the straw that broke this camel’s back.

I quit Reddit cold turkey on the day the APIs died. Sync was synonymous to Reddit for me. When one died, so did the other.