Sorry for posting here, I use the Epic version. I love your mods, I even have several of them installed and I don't play without them. I have a suggestion: How about creating a use for strategic resources related to buffing the functioning of districts and improvements?
I would like to make this kind of mod myself but I don't have such skill, but it would work like this: Some districts would use strategic resources like fuel (something that only happens with Coal, Oil and Uranium) to buff something in their functioning. For example: Horses are historically used as a form of entertainment, the entertainment complex itself has a building based on it, so if you have horses in your territory you could gain an Amenities or Culture buff with a small consumption per turn. Niter is a base for fertilizer production, so you could have a small expense from it to increase food production in your empire.