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In Design Principles, Patterns & Architecture the overall approach, covers topics such as CQRS, microservices, "statelessness", and composition of microservices at a high level.
In Fineract CN Project Structure each of the microservices is listed in a hierarchy with links to the github repositories. Note that in a microservices architecture each service has its own repository.
In Apache Fineract CN Community Roadmap a phased approach to get to a release is described, with intentions.
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