Off-topic: I really hate this design trend for dev-related products where everything is dark mode and very low constrast. It's terrible for reading the content of the page.
What's the expected/intended workflow? Would I copy the contents of your github repo into mine own and then build my functionality on top of FlutterFlash?
Yes, exactly. With my boilerplate you need to do only the little configuration with your params for the common services like RevenueCat & Firebase, then you can use it as base for your app development. So you can add your features on top of my base code.