Naming things is hard. As a software engineer, I know this all to well. The times I've puzzled, despared, cursed at whoever named some variable, only to have git blame tell me that this particular variable was added by a certain remmelt… Either way. In this post I will document the steps I took to flash the qmk-dfu bootloader onto a Pro Micro Arduino clone. Terms First off, here are some terms I'll be using.