Awesome read ! . One suggestion for improvement is to integrate the concept of showing the data flow between the different levels of the examples, to help illustrate the advantages and behavior of each design. For example, the article could include a diagram or flowchart that shows the data flow between the presentation, business logic, and external dependencies layers in the layered architecture example. This would help the reader better understand how the different components interact with each other and how data moves between them. Additionally, the article could provide more concrete examples of data flow in the different architectural styles, such as through the use of code snippets or diagrams. This would make the concepts more tangible and easier to understand, and would help the reader see how the different architectural styles can be applied in practice. By integrating the concept of data flow into the article, the reader will have a clearer understanding of how the different architectural styles work and how they can be used to structure Go applications effectively.