Project Scaffolding

Overview

A SaaS codebase lives or dies by its boundaries. Pick Next.js App Router + TypeScript and commit to one rule: business logic lives in server-only modules, the UI imports from a typed data-access layer, and secrets never cross into client components. Get the skeleton right and every later skill (auth, billing, jobs) slots in cleanly.

When to use

• Bootstrapping a new SaaS app from zero.
• An existing app has logic scattered across components and route handlers.
• You need a layout that supports multi-tenancy, billing, and background jobs later.

Folder layout