Each service has a scheme file in the resources folder in the jar file. Multiple jar files
can be put into a service folder that is part of the classpath of a hybrid server. When server
is started, it will iterate all jar files in the classpath to load schema.json and mergge them
together in memory.
Given the above loading logic, you cannot put the service jar file into a fat jar of the server
as schema.json will be overwritten and only one is available at the end.