There's https://v2ex.com/ https://v2ex.com/ although it's more project and less news focused. The biggest platform for local communities like individual cities

There's https://v2ex.com/ https://v2ex.com/ although it's more project and less news focused. The biggest platform for local communities like individual cities is usually WeChat groups. Shenzhen in particular also has a very active makerspace and expat scene.