Developing Spring Cloud Microservices With a Central Environment

How can developers work simultaneously on the same central Spring Cloud environment?

Developing software based on a microservices architecture is extremely easy when you use Spring Boot and Spring Cloud. Just throw in a few lines of code and you can have a microservice up and running. But how do you develop a real-world application in such an environment? In theory, each microservice is isolated and can be developed alone, but, in practice, this is often not the case. To develop and test your service in the context of the application that uses it requires more than just your microservice to be up and running. So, how can one conveniently develop in a multi-microservices environment?