180 Days to
Product thinking.
A 180-day mentorship journey documenting the disciplined process of building a production-grade app in the AI era.
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5_layer_architecture
Day 0 – Why I Started OfflineLifeArchive
The beginning of my 180-day public writing journey and the privacy-first vision behind Offline Life Archive.
Day 1 – We Don’t Start With Code
**Today is Friday.** And today — we are **not** writing features. We are deciding how this product will live, breathe, and evolve for the next five years. Most developers open a new project and immediately start creating screens. Buttons. Forms. Navigation stacks.
Day 2 – Practice Time
**Today is Friday.** And today — we are **not** writing features. We are deciding how this product will live, breathe, and evolve for the next five years. Most developers open a new project and immediately start creating screens. Buttons. Forms. Navigation stacks.
Day 3 – Practice Time
**Today is Friday.** And today — we are **not** writing features. We are deciding how this product will live, breathe, and evolve for the next five years. Most developers open a new project and immediately start creating screens. Buttons. Forms. Navigation stacks.
Day 4 : Establishing the Secure Infrastructure Layer
Implemented the secure infrastructure: encryption key strategy, encrypted Realm setup, and repository/service boundaries to ensure privacy-first, maintainable local storage.
Day 5 : Encrypted Realm Initialization (Core + Data Layer Only)
Set up encrypted Realm with secure key management and schema definitions to ensure privacy-first local storage for the app's core data layer.
Day 6 : Repository Layer Comes to Life
Implementing an ArchiveRepository to safely abstract encrypted Realm access — enabling persistent, privacy-first local storage while keeping UI and business logic decoupled from storage details.
Day 7 : Service Layer Introduced
Session 1 of a 180-day mentoring journey: introducing the Service Layer to isolate business logic, validation, and ID generation — keeping UI and repository clean.
Day 8 : Offline Life Archive — Screen Structure (MVP) Using AI
Define the MVP screen structure and prompts for a privacy-focused offline memory app.
Day 11: AI-Assisted Translation — From Web to Native
We take the AI-generated HTML/CSS from Day 8 and, using GitHub Copilot as our pairing partner, translate it into a beautiful, functional React Native component. A practical lesson in prompt-driven development.
Day 12: Implementing Navigation with TypeScript
A guide to building a type-safe navigation system in React Native using React Navigation and TypeScript, eliminating common errors and improving code maintainability.