I used to run a few Timebanks in Finland back in the day, until the government and the media scared people off. A few hundred people in a small city can run a pretty functional local community even in the harshest weather conditions, so a datablockchain with NFTs might prove to be the next step.

Community exchange system on a new technology has been an interesting concept to develop, like virtual cat-themed cards as a means of showing appreciation. Abundance instead of artificial scarcity.