These is the latest update of Smart City On their Official Twitter account.
They have made changes and published the update website, whitepaper and promo video.
Check them out on the links below.

https://www.smartcityeco.com/
https://docs.wixstatic.com/ugd/b46aa3_6876d3662e7a4dc6b0732a2d190e0c38.pdf
https://www.youtube.com/watch?v=zUXKy7QBgzM