How oliver-castillo/finanz-app works
1. Repository state
- This snapshot contains only README.md, .gitignore, and LICENSE.
- There is no application source code or configuration visible, so the implemented architecture cannot be reconstructed from files alone.
2. Stated product shape
- The README describes “finanz” as a personal finance platform.
- The core business capabilities are expense tracking, budgeting, and financial analytics.
3. Intended technology split
- The stack explicitly names Java + Spring Boot and Next.js.
- The most likely architectural boundary is a frontend web client in Next.js talking to a backend application/service layer in Spring Boot.
4. Frontend role
- Next.js is the presentation and interaction layer for users managing finances.
- It would typically handle dashboards, forms, and navigation for the finance workflows, but no UI structure is visible in the repo.
5. Backend role
- Spring Boot is the core server-side platform for business logic and API exposure.
- It is the natural home for expense, budgeting, and analytics domain rules, but no controller/service/entity layout is present here.
6. Domain boundaries implied by the README
- The product appears to organize around three functional areas:
- Expense tracking
- Budgeting
- Financial analytics
- For an architecture diagram, these should be shown as business capabilities behind the backend/API boundary rather than as separate confirmed services.
7. Cloud-native intent
- The README says “cloud-native architecture,” which implies deployable, environment-oriented components rather than a monolith-only design.
- However, there is no evidence in the repository of specific infrastructure tools, containers, messaging, databases, or cloud providers.
8. What is not evidenced
- No data store, authentication system, messaging layer, batch jobs, or observability stack is visible.
- No repository structure indicates whether the backend and frontend are separate apps, a monorepo, or a multi-service system.
9. Best diagram interpretation
- Draw this repo as a conceptual two-tier product architecture:
- Next.js client
- Spring Boot backend/API
- Behind the backend, show the finance domains as core capabilities, with cloud deployment as the runtime envelope.
10. Confidence level
- High confidence only on the declared stack and business scope.
- Low confidence on any deeper structural claims, because the repository currently does not include implementation files.
Components 9
Frontend
Next.js presentation layer for user interactions.
- Next.js App · User-facing web client for finance workflows.
- Finance UI · Screens for dashboards, forms, and navigation.
Backend
Spring Boot application and finance domain logic.
- Spring Boot · Server-side application platform and API boundary.
- Finance API · HTTP interface between the web client and backend.
- Expenses · Tracks personal spending and transactions.
- Budgeting · Budget rules, limits, and allocation logic.
- Analytics · Financial summaries, trends, and insights.
Runtime
Cloud-native deployment envelope implied by the README.
- Cloud Runtime · Cloud-native hosting and deployment context.
Other components
- finanz · Personal finance platform repository snapshot.
Connections 11
- finanz → Next.js App: includes · Repository describes a Next.js frontend.
- finanz → Spring Boot: includes · Repository describes a Spring Boot backend.
- Next.js App → Finance UI: renders · The client provides the finance user interface.
- Finance UI → Finance API: calls · UI interactions are served through backend APIs.
- Spring Boot → Finance API: hosts · Spring Boot exposes the application API boundary.
- Finance API → Expenses: serves · Expense tracking is a core backend capability.
- Finance API → Budgeting: serves · Budgeting logic is handled behind the API.
- Finance API → Analytics: serves · Analytics features are produced by the backend.
- Expenses → Cloud Runtime: deploys on · Backend capabilities are assumed to run in a cloud-native environment.
- Budgeting → Cloud Runtime: deploys on · Backend capabilities are assumed to run in a cloud-native environment.
- Analytics → Cloud Runtime: deploys on · Backend capabilities are assumed to run in a cloud-native environment.