Delivery: A presenter layer to decide how the data will be presented. In this project I use REST API
Usecase: Where business logic happens
Repository: A non business logic layer to communicate with datastore like Database, Cache, and etc.
Model: To define entities and its method that used in the project
Config: Folder to store configuration
Utils: An utility method that used in the project and not a part of business logic
Database: Additional folder to store database migration and seed