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seeksaas-development

Complete SeekSaaS development guide covering project setup, workflows, conventions, and best practices

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SKILL.md

Full skill instructions

SeekSaaS Development Guide

Project Overview

SeekSaaS is a production-ready full-stack SaaS starter template built with:

  • Frontend: React 19 + React Router v7 + Vite 7
  • Backend: Hono + Drizzle ORM + PostgreSQL
  • Deployment: Cloudflare Workers + Pages
  • Styling: Tailwind CSS v4 + Shadcn UI
  • Type Safety: Full-stack TypeScript

Monorepo Architecture

SeekSaaS uses a monorepo with pnpm workspaces and Turbo for efficient development:

seeksaas-www-react-router-v7/
├── apps/              # Deployable applications (web)
├── packages/          # Reusable libraries (30+ packages)
├── features/          # Feature modules (ai, auth, cms, mkt, panel, shared)
├── apis/              # API layer (api, api-client, api-services, etc.)
├── auths/             # Authentication (auth, auth-shared, session)
├── database/          # Database (db, dal)
├── mails/             # Email services (mail, mail-templates)
├── payments/          # Payment services (payment, plans)
├── newsletters/       # Newsletter (newsletter, mail-newsletter)
├── configs/           # Configuration (config, env)
├── tools/             # Dev tools (seed, typescript-config)
└── pnpm-workspace.yaml

Development Workflow

Getting Started

  1. Clone and Install
git clone <repository-url>
cd seeksaas-www-react-router-v7
pnpm install
  1. Environment Setup
cp apps/​web/​.env.example apps/​web/​.env
# Edit apps/​web/​.env with your configuration
  1. Database Setup
pnpm db:generate  # Generate migrations
pnpm db:migrate   # Run migrations
pnpm db:studio    # Open Drizzle Studio (optional)
  1. Start Development
pnpm dev          # Start all services
pnpm dev:web      # Start web app only

Common Commands

# Development
pnpm dev              # Start development server
pnpm dev:web          # Start web app only

# Building
pnpm build            # Build all packages
pnpm check-types      # Type checking

# Code Quality
pnpm lint             # Run linter
pnpm format           # Format code
pnpm check            # Check code quality

# Database
pnpm db:generate      # Generate migrations from schema
pnpm db:migrate       # Apply migrations
pnpm db:push          # Push schema changes (dev only)
pnpm db:studio        # Open database studio
pnpm seed             # Seed database

# Deployment
pnpm cf:preview:web   # Preview on Cloudflare
pnpm cf:deploy:web    # Deploy to Cloudflare
pnpm mail:preview     # Preview email templates

# Email
pnpm mail:preview      # Preview email templates in browser

Code Conventions

TypeScript

  • Use strict mode TypeScript
  • Prefer explicit types over any
  • Use interfaces for object shapes, types for unions/​primitives
  • Export types with export type when possible

React

  • Use functional components with hooks
  • Prefer named exports over default exports
  • Use TypeScript for component props
  • Follow the composition pattern

File Naming

  • Components: PascalCase.tsx (e.g., UserProfile.tsx)
  • Utilities: camelCase.ts (e.g., formatDate.ts)
  • Constants: UPPER_SNAKE_CASE.ts (e.g., API_ROUTES.ts)
  • Types: PascalCase.ts or *.types.ts
  • Tests: *.test.ts or *.spec.ts

Package Dependencies

  • Use workspace protocol: "@workspace/​package-name": "workspace:*"
  • Use catalog protocol for shared dependencies: "package-name": "catalog:"
  • Follow unidirectional dependencies to avoid cycles

Architecture Layers

┌─────────────────────────────────────┐
│   Application Layer (apps/​web)      │
└──────────────┬──────────────────────┘
               │
┌──────────────▼──────────────────────┐
│   UI Component Layer                │
│   (packages/​ui, features/​*)        │
└──────────────┬──────────────────────┘
               │
┌──────────────▼──────────────────────┐
│   API Layer                         │
│   (apis/​api, apis/​api-client)      │
└──────────────┬──────────────────────┘
               │
┌──────────────▼──────────────────────┐
│   Service Layer                     │
│   (apis/​api-services)              │
└──────────────┬──────────────────────┘
               │
┌──────────────▼──────────────────────┐
│   Data Layer                        │
│   (database/​db)                    │
└─────────────────────────────────────┘

Key Technologies

Frontend Stack

  • React 19 - Latest React with concurrent features
  • React Router v7 - File-system routing with data loading
  • Vite 7 - Fast build tool with HMR
  • Tailwind CSS v4 - Utility-first CSS
  • Shadcn UI - Accessible component primitives

Backend Stack

  • Hono - Lightweight web framework for edge computing
  • Cloudflare Workers - Serverless deployment
  • Drizzle ORM - Type-safe database ORM
  • PostgreSQL - Relational database (Neon)
  • Better Auth - Authentication solution

Developer Tools

  • TypeScript - Type safety
  • Biome - Linting and formatting (replaces ESLint + Prettier)
  • Turbo - Monorepo build system
  • pnpm - Package manager with workspace support
  • Husky - Git hooks
  • lint-staged - Pre-commit checks

Feature Modules

Core Features

  • Authentication (features/​auth) - Login, signup, password reset
  • CMS (features/​cms) - Content management system
  • Marketing (features/​mkt) - Landing pages, about, contact
  • Panel (features/​panel) - User dashboard and admin panel
  • AI (features/​ai) - AI features (chat, image generation)
  • Shared (features/​shared) - Shared components (Logo, background, 404)

Integration Modules

  • Payments (payments/​*) - Stripe integration, plan management
  • Email (mails/​*) - Email service with Resend
  • Newsletter (newsletters/​*) - Newsletter subscription
  • Storage (packages/​storage) - S3/​R2 storage

Environment Variables

Required Variables

# Database
DATABASE_URL=postgresql://user:password@host:port/​db

# Authentication
BETTER_AUTH_SECRET=your-secret-key
BETTER_AUTH_URL=http://localhost:5173

# Optional Services
OPENAI_API_KEY=sk-xxx              # AI features
RESEND_API_KEY=re_xxx              # Email
STRIPE_PK=pk_test_xxx              # Payments
STRIPE_SK=sk_test_xxx

Environment Files

  • Development: apps/​web/​.env
  • Production: Set in Cloudflare Pages/​Workers

Testing

Unit Tests

# Run tests in a specific package
pnpm test --filter <package-name>

E2E Tests

pnpm e2e

Best Practices

Component Development

  1. Keep components small and focused
  2. Use composition over inheritance
  3. Implement proper error boundaries
  4. Add loading states for async operations
  5. Use React Query for server state

API Development

  1. Use Hono for API routes
  2. Implement proper validation with Zod
  3. Add OpenAPI documentation
  4. Use API client on frontend (Hono RPC)
  5. Handle errors gracefully

Database

  1. Define clear schema with Drizzle
  2. Use migrations for schema changes
  3. Add indexes for performance
  4. Use prepared statements
  5. Handle transactions properly

Troubleshooting

Common Issues

  1. Database connection fails

    • Check DATABASE_URL is correct
    • Verify PostgreSQL service is running
    • Check network/​firewall settings

  2. Build fails with type errors

    • Run pnpm check-types to see details
    • Ensure all packages are built
    • Check tsconfig.json settings

  3. Port already in use

    • Check which process is using port 5173/​3000
    • Kill the process or use different port

  4. Environment variables not loading

    • Verify .env file exists in apps/​web/
    • Check variable names are correct
    • Restart development server

Resources