Use Brother DK-1209 labels (2.4" × 1.1"). In the print screen pick the Brother printer and the 29mm × 62mm label size.
Changes saved here update every phone and computer that uses the label app. Prices include tax. Weights that aren't listed use the per-gram rate of the next size down.
Each strain's QR code opens its COA. To add or replace one: on the Mac, save the COA photo (or the lab's PDF) into the coa folder with the file name shown below, then upload the folder to Cloudflare again. QR codes don't change, so labels already printed show the new COA.