This paper presents a Beyond 5G testbed developed within the 6G-PATH project, a collaboration between Instituto de Telecomunicações (IT) and Altice Labs (ALB). The testbed serves as a foundation for conducting experiments, running pilots, and enabling interoperability between multiple partners, both within and beyond 6G-PATH through open calls. A key aspect of this initiative is its integration with the 6G-PATH portal, facilitating seamless interaction with other testbeds. Designed to support future 6G networks, the testbed provides an open, flexible, and scalable environment for testing mobility, network automation, extensive monitoring, and edge computing in a smart city setting. Located in Aveiro, Portugal, the infrastructure features an open-source 5G core and a combination of open-source and proprietary Radio Access Technologies (RAT), ensuring multi-vendor interoperability. The city’s connected ecosystem includes autonomous vehicles, distributed edge computing, and real-time data processing, enabling innovative use cases for connected and sensing cities.