I built this for my chest freezer years ago (including the domain chowcaster.com), which used a barcode scanner to add/remove items. It worked better than a pan

I built this for my chest freezer years ago (including the domain chowcaster.com), which used a barcode scanner to add/remove items. It worked better than a pantry because 1. Less items and typically higher cost, 2. You usually make a trip to your freezer and 3. It's hard to know what's in there. It basically replaced the clipboard my mom still uses to track her freezer inventory.