In search of a coder to design code for custom printed barcode labels for square retail plus

Hello,
I own a retail store that is switching to a barcode scanning system through Square Retail Plus. Square does not offer all the sizes of barcode labels we need ( most important barbell tags for rings and other jewelry). I am looking for someone to code a template that will allow us to create the labels we need. The barbell labels we plan to use are “dymo 30299” labels.