5.1 Introduction

In the previous session, we prepared the foundation:

• Created the React Native project
• Structured the layered architecture
• Understood Repository and Service responsibilities

Today, we move from structure to infrastructure.

We will implement Encrypted Realm Initialization.

Important:

We are still not touching UI logic.

We are not implementing business rules.

We are not building features.

Today is strictly about the Core Layer and the Data Layer .

5.2 Why Encryption From Day One?

From the product definition , this application is:

“Your private digital life. Stored locally. Owned by you.”

Privacy is not an optional enhancement.

It is the core value proposition.

If we delay encryption: