What is so special about Fast API? It is the level of freedom! free to choose the project structure, modular, layers, or even use-cases. free to use SQLModel, SQLAlchemy, SQLObject, Tortoise-ORM, or even Django ORM! free to use Pydantic, DataClasses, Marshmallow, or even Cerberus. free to use Alembic, Liquibase, or maybe Jetbase. free to use sync or async operations. What sucks about Fast API