I'd suggest an option for the Aura - instead of only using the Midnight Potion as a orientation point (which has the downside of not being exact, as Aura is worth more in Wagons for example), how about a second option that calculates it based on the cost for resources?

I know that both are complicated due to boosts and such messing with the outcome. Or maybe have a cost calculator, and a revenue calculator? In the first, aura is calculated based on the current cost of resources. In the second, it's based on Midnight Potions.

Besides - great post! Reading the headline I was scared to find another hyper-technical-coder post... :-D Thank you so much for this tool!