kaushikp020603/myarthiq

1. Overall shape

- This is a modular monolith for personal/family/business finance.

- The system is split into a React/Vite frontend and a FastAPI backend, with a shared domain broken into feature modules rather than separate services.

2. Frontend presentation shell

- The frontend lives under frontend/ and is a single-page app built with React + TypeScript + Vite + Tailwind.

- src/main.tsx bootstraps the app, and src/App.tsx plus src/components/layout/Shell.tsx define the top-level chrome/navigation and feature routing experience.

3. Feature-oriented UI structure

- UI code is organized by business capability under src/features/ rather than by technical layer.

- Major user-facing areas include auth, dashboard, budgets, accounts, transactions, assets, goals, insurance, portfolio, reports, planning, sharing, security, admin, tools, and tutorials.

- This makes the frontend diagram best represented as a shell with many feature panels, each owning its own page and local components.

4. Frontend data and state flow

- Shared client utilities live in src/lib/, including the API wrapper layer, query client, profile context, and finance-specific helper data.

- Global UI/account state is handled in src/store/ for auth, profile, and theme.

- Most feature pages appear to call backend endpoints through feature-local api.ts files, with shared request/query infrastructure underneath.

5. Backend application boundary

- The backend is a FastAPI app rooted at backend/app/main.py.

- API routing is composed in backend/app/api/v1/, with module routers wired into a versioned API surface.

- From an architecture diagram perspective, the backend is the central domain/API boundary between the frontend and persistence.

6. Backend modular domains

- Business logic is split into backend/app/modules/*, including auth, admin, accounts, budgets, dashboard, finance, goals, household, insurance, public, and wealth.

- Each module typically contains its own models, schemas, services, and/or router, showing a layered vertical-slice structure inside the monolith.

- The frontend feature names map closely to these backend modules, which is the main functional correspondence in the system.

7. Security and access control

- Authentication is JWT-based, with security support in backend/app/core/security.py.

- RBAC is a first-class boundary in backend/app/core/rbac.py, and admin-specific data flows exist under backend/app/modules/admin.

- This means the architecture should show authenticated user flows and admin-only flows as separate access paths through the same API.

8. Persistence layer

- SQLAlchemy models are used for persistence, with database session management in backend/app/db/session.py.

- The project is SQLite-friendly for local development but explicitly designed to be PostgreSQL-ready.

- Alembic migrations in backend/alembic/versions/ define the evolving schema, including families, joint accounts/transfers, goals metadata, budgets, and admin-related tables.

9. Runtime support and background work

- There is a Celery worker setup in backend/app/workers/, indicating asynchronous/background processing.

- Notification-related background jobs are present, and email support exists in backend/app/core/email.py.

- This adds a second execution path besides the request/response API: scheduled or async tasks for notifications and similar jobs.

10. Initialization and operational scripts

- backend/database/ contains bootstrap and migration helpers such as create_admin.py, seed.py, and schema conversion utilities.

- These scripts support first-run setup and data migration rather than end-user features.

- For architecture, they are best shown as operational tooling attached to the backend/data layer.

11. Domain cross-cuts

- Shared finance helpers live in backend core/modules and frontend src/lib/ rather than inside a single feature.

- The app includes shared concepts like families, profiles, banks, expense categories, and net worth/wealth calculations, which cut across several user flows.

- These are important conceptual boundaries when drawing the domain model, because many screens depend on the same household/profile context.

12. Public vs authenticated surfaces

- The frontend includes landing, legal, login/signup/password-change, and other onboarding pages alongside the authenticated product shell.

- The backend has a public module, suggesting some endpoints are intentionally available without login.

- So the system has a clear split between public marketing/onboarding, authenticated finance workspace, and admin console.

13. Testing and documentation

- Backend tests cover smoke, family behavior, and budgets/privacy concerns.

- The docs/ folder contains architecture and product breakdown documentation, which likely aligns with the intended module boundaries.

- These are supporting artifacts, but they confirm that the main architectural concerns are privacy, multi-family context, and feature modularity.

14. Key diagram takeaway

- The best architecture diagram is: React SPA shell → feature pages/hooks/api clients → FastAPI versioned routers → module services/models → SQLAlchemy/PostgreSQL/SQLite, with JWT/RBAC guarding access and Celery/email handling asynchronous side effects.