[amelius]

Anyone who knows of a cheap sensor that works in Linux and can read Digikey bag barcodes?

[MiguelHudnandez]

I'm unclear about a specific sensor, but it looks like the format you want to decode would be "Data Matrix ECC 200"

https://forum.digikey.com/t/digikey-product-labels-decoding-...

I think a smartphone and custom app would be the worst case scenario in terms of cost, and that could be pretty cheap.