Why should you care?

Enterprise repos grow for years — predictable folders let new hires find auth, billing, and health modules quickly.

See it live — copy this example

Paste into your MeanVerse project (Angular + Express + MongoDB), then run with ng serve / node / mongosh as noted.

meanverse/
  web/src/app/
    core/          # auth, interceptors, api clients
    features/      # banking, saas, ecommerce modules
    shared/        # ui buttons, pipes
  api/src/
    routes/        # accounts.routes.ts
    models/        # account.model.ts
    middleware/    # auth, validate
    config/

What happened?

• Angular features map to business domains.
• API routes mirror REST resources.
• Models live next to routes but stay thin — logic goes in services.

Practice next

1. Create web/ and api/ top-level folders.
2. Move Angular app under web/; Express under api/src/.
3. Add a README diagram of folder responsibilities.
4. Add libs/shared-types for DTOs used by both tiers.
5. Introduce api/src/modules/billing/ mirroring web feature.

Remember

Split frontend and backend at repo root. Feature folders align UI and API by domain. core/ holds cross-cutting Angular services.

ERP module boundaries

MeanVerse ERP adds inventory without tangling payroll code.

Outcome: Squads own features/ folders with minimal merge conflicts.