It would be cool if my city coordinated the city skyline's lights to provide information at a glance like current air quality or forecast. Idea inspired by the fun public light show at the nearby park, which they should have days for citizens to control the show, too. Or sync to different local radio stations.

Working on decentralized manufacturing and open source design as a means of greater web3 adoption.

And I don't picture this as just a giant screen stating information, I'm talking the lights change colors to reflect this information, something subtle.