A voluntary AI system to help communities achieve big goals together

I've been thinking about a concept for a while and wanted to get some outside perspective on it. The basic question is: what if AI could help us coordinate around ambitious goals the way we used to when we built cathedrals or went to the moon, but without any central authority calling the shots? The idea is an open-source AI system where communities define broad goals - reducing loneliness in a neighborhood, restoring local biodiversity, building crisis resilience. Anyone can propose a goal, and you only to the ones you actually believe in.