Phase 1 MVP

Build career momentum with visible, repeatable progress.

Single-user private mode

Lesson

Modeling data with dicts, dataclasses, and Pydantic

Use strict validation at boundaries and keep the middle of the system simple.

40 minutesIn progress

## Data modeling choices

AI systems move semi-structured data around constantly.

### Use dicts for exploration

### Use dataclasses for internal domain objects

### Use Pydantic for API and persistence boundaries