How often can you adhere to a fully optimal architecture in your projects?

A fully optimal architecture is an ideal to strive for, but in practice, it is rarely possible to implement it 100% due to constraints of time, resources, and changing requirements.

It is often necessary to balance between architectural purity and quick results. It is important to apply best practices and patterns where it is truly critical, and gradually improve the architecture during the project's development.

For example, you can start with a simple structure and refactor the code as the project grows to avoid unnecessary complexity in the early stages.