@arichtman @GeePawHill You're welcome. Sharing helps me re-read as well (the pattern names are often enough). But it rings true: "First of all, it isn’t very hard. The bulk of the source is actually still over there in the shipping app. It’s just a few things as we saw today. But secondly, you get ideas, you get capabilities that you cannot possibly put into the shipping app."
It wasn't very hard. I had some fun digressions, and while spiking and making the making app, I got more creative ->