There's no reason we couldn't have an Amazon-like app that buys from the stores around us.
Or services like door dash/Uber/etc that are managed inside the community with tools shared with other communities.
It is an idea that would pair well with locally managed fiber (municipal or local business), and community clouds.
I'm starting with makerspaces, but I could see it operating without them too.
The video for my talk was published recently. The video quality is terrible, and I definitely need more experience with public speaking, but I think it went pretty well.
https://youtu.be/cQBb6vqEW2E?t=1790