Desktop app
Built for the counter.
Plug in a USB barcode scanner and it works immediately — scanned codes land straight in the sale screen, no setup or drivers needed.
Windows: Unsigned — Windows may show a SmartScreen warning. Click "More info → Run anyway". · macOS: Unsigned — macOS will say the app "cannot be opened". Right-click the app → Open → Open, or go to System Settings → Privacy & Security and click "Open Anyway". · Linux: Make it executable, then run it directly — no install step.