Architecture

Tech Stack

Layer	Technology
Frontend	React 18, TypeScript, TailwindCSS, Shadcn/Radix UI
State	React Query (server), Zustand (client)
Backend	NestJS, Prisma ORM, PostgreSQL
AI Agents	Python, LangGraph, LangChain
Monorepo	Nx, pnpm
Bundler	Vite (client), SWC (server)

Project Structure

apps/
├── server/     # NestJS API (port 3000)
├── client/     # React frontend (port 5173)
├── artboard/   # Resume builder (port 6173)
├── graphs/     # Python LangGraph service
└── docs/       # This docs site (port 4000)
libs/
├── dto/        # Shared DTOs
├── ui/         # Shadcn/Radix components
├── hooks/      # Shared React hooks
├── schema/     # Zod schemas
└── utils/      # Utilities
tools/
├── prisma/     # Database schema & migrations
└── compose/    # Docker Compose files

Request Flow

Browser → React Client → NestJS API → Prisma → PostgreSQL
                      ↘ Python AI Service (LangGraph)