Spring Boot - Conditionally load module during runtime or compile-time

First of all, I am new to Spring Boot so I am not sure if something like this is possible within the framework.

Let me describe my problem.

I have 10 code repositories. Each repository listens to a data stream, parses the data and updates a database. Due to maintainability issues I plan on bringing it under a single code repository. This new application will be generalized, and certain app specific configurations (for example, which stream should I connect to, the database host) will be retrieved at run-time.

Theoretically, this would allow me to maintain a single code base, but deploy it as 10 separate services based on configurations which is what I need. However, there's a set of java classes that are application specific used to parse the retrieved data. To better understand this refer the diagram below.

Ideally, I need to still maintain these classes in the same repository, but as separate modules. Once the configurations are loaded, the app should be able to load the corresponding module into the application context and initialize the Java classes. The other modules will not be used.

Can I do something like this with Spring Boot? Alternately, even a build time solution is fine if I can create separate builds which can then be deployed separately.

Not sure did I understood it well but why don't try spring profile (https://www.baeldung.com/spring-profiles). You can set for every service different config and with spring.profiles.active in runtime say what configuration will use.

Also something like this could be useful https://www.baeldung.com/spring-reloading-properties