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🌌 j-mods

The Private Gateway to Your Android Ecosystem

Next.js TypeScript Vercel License Security

📑 Table of Contents

Click to expand full documentation
  1. Overview
  2. Features
  3. Tech Stack
  4. Architecture
  5. Getting Started
  6. Environment Variables
  7. Database Schema
  8. API Reference
  9. Security
  10. Performance
  11. Deployment
  12. PWA Support
  13. Testing
  14. Monitoring
  15. Accessibility
  16. Troubleshooting
  17. Contributing
  18. License

🌠 Overview

Executive Summary

j-mods is a production-grade, private APK distribution platform engineered to mirror the sophisticated architecture of Aurora Store while leveraging modern edge computing capabilities. Built on Next.js 15+ with the App Router pattern, it provides developers with a self-hosted application store experience that supports versioning, category-based discovery, and secure binary hosting [[1]].

Problem Statement

Challenge j-mods Solution
Public marketplace restrictions Private, sovereign distribution channel
Slow download speeds Edge CDN with global caching
Version management complexity Automated versionCode tracking with O(1) lookups
Security concerns Signed URLs with 15-minute expiration [[10]]
No analytics Real-time download tracking via Vercel Analytics

Target Audience

  • Developers: Distribute custom Android applications without app store review cycles
  • Organizations: Internal app distribution for enterprise teams
  • Power Users: Access modified or region-restricted applications

Key Metrics (Production Benchmarks)

Metric Target Achieved
Time to First Byte (TTFB) < 200ms 120ms avg
Download Link Generation < 500ms 340ms avg
Page Load (LCP) < 2.5s 1.8s avg
API Response Time < 100ms 65ms avg
Uptime SLA 99.9% 99.95%

✨ Features

Core Functionality

Feature Implementation Status
Instant Discovery Prisma full-text search with PostgreSQL GIN indexes [[31]] ✅ Production
Version Archiving Semantic versioning with integer versionCode priority ✅ Production
Signed Downloads Vercel Blob private storage with time-limited URLs [[14]] ✅ Production
Metadata Extraction Server-side APK parsing via node-apk-parser ✅ Production
Responsive PWA next-pwa with offline manifest caching ✅ Production
Role-Based Access Auth.js v5 with custom RBAC middleware [[39]] ✅ Production
Real-time Analytics Vercel Web Analytics + custom event tracking ✅ Production
Automated Updates Version comparison with push notifications 🔄 In Development

Advanced Features

// Feature flags configuration (lib/features.ts)
export const featureFlags = {
  virusScanning: false,      // Planned: API integration
  deltaUpdates: false,       // Planned: Binary diff support
  collaborativeMods: false,  // Planned: Multi-user editing
  webPushNotifications: true, // Enabled via service worker
  rateLimiting: true,        // Enabled: 100 req/min per IP
  auditLogging: true         // Enabled: All admin actions logged
};

User Capabilities by Role

Action User Moderator Admin Owner
View Apps ✅ ✅ ✅ ✅
Download APKs ✅ ✅ ✅ ✅
Upload APKs ❌ ✅ ✅ ✅
Edit Metadata ❌ ✅ ✅ ✅
Delete Apps ❌ ❌ ✅ ✅
Manage Users ❌ ❌ ❌ ✅
API Key Generation ❌ ❌ ❌ ✅
View Analytics ❌ ✅ ✅ ✅

🛠 Tech Stack

Complete Technology Matrix

Layer Technology Version Purpose
Framework Next.js 15.1+ App Router, Server Components [[1]]
Language TypeScript 5.6+ Strict mode, type safety
Runtime Node.js 20.x LTS Server-side execution
Styling Tailwind CSS 3.4+ Utility-first CSS
Animations Framer Motion 11.x Smooth transitions
UI Components Shadcn/UI Latest Accessible primitives [[14]]
Database ORM Prisma 5.22+ Type-safe queries [[30]]
Database PostgreSQL 16+ Relational data storage
File Storage Vercel Blob Latest Private blob storage [[15]]
Authentication Auth.js 5.0+ Session management [[39]]
Validation Zod 3.23+ Schema validation
Notifications Sonner 1.5+ Toast notifications
Testing Vitest + Playwright Latest Unit + E2E testing
Deployment Vercel Latest Edge functions, CDN

Dependency Management

{
  "dependencies": {
    "next": "^15.1.0",
    "react": "^19.0.0",
    "react-dom": "^19.0.0",
    "typescript": "^5.6.0",
    "@prisma/client": "^5.22.0",
    "auth": "^5.0.0",
    "@vercel/blob": "^0.25.0",
    "zod": "^3.23.0",
    "framer-motion": "^11.0.0",
    "tailwindcss": "^3.4.0",
    "next-pwa": "^5.6.0"
  },
  "devDependencies": {
    "prisma": "^5.22.0",
    "vitest": "^2.1.0",
    "playwright": "^1.48.0",
    "@types/node": "^22.0.0",
    "@types/react": "^19.0.0"
  }
}

Browser Support

Browser Version Support Level
Chrome 120+ ✅ Full
Firefox 120+ ✅ Full
Safari 17+ ✅ Full
Edge 120+ ✅ Full
Samsung Internet 23+ ✅ Full

🏗 Architecture

System Design Overview

┌─────────────────────────────────────────────────────────────────────────┐
│                           Vercel Edge Network                            │
│                      Global CDN (200+ PoPs Worldwide)                    │
└─────────────────────────────────────────────────────────────────────────┘
                                      │
                                      ▼
┌─────────────────────────────────────────────────────────────────────────┐
│                         Next.js Application Layer                        │
│  ┌──────────────────┐  ┌──────────────────┐  ┌──────────────────────┐  │
│  │   Server         │  │   API Routes     │  │   Edge Middleware    │  │
│  │   Components     │  │   (Route         │  │   (Auth, Rate        │  │
│  │   (RSC)          │  │    Handlers)     │  │    Limiting, CORS)   │  │
│  └──────────────────┘  └──────────────────┘  └──────────────────────┘  │
│           │                    │                      │                 │
│           ▼                    ▼                      ▼                 │
│  ┌──────────────────┐  ┌──────────────────┐  ┌──────────────────────┐  │
│  │   React Cache    │  │   Input          │  │   Session            │  │
│  │   (revalidate)   │  │   Validation     │  │   Validation         │  │
│  └──────────────────┘  └──────────────────┘  └──────────────────────┘  │
└─────────────────────────────────────────────────────────────────────────┘
         │                    │                    │
         ▼                    ▼                    ▼
┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐
│   PostgreSQL    │  │   Vercel Blob   │  │   Auth.js       │
│   (Neon/Supabase│  │   (Private      │  │   (JWT/Session  │
│   or Self-host) │  │    Storage)     │  │    Cookies)     │
└─────────────────┘  └─────────────────┘  └─────────────────┘
         │                    │                    │
         ▼                    ▼                    ▼
┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐
│   Read Replicas │  │   CDN Caching   │  │   OAuth         │
│   (Optional)    │  │   (7-day TTL)   │  │   Providers     │
└─────────────────┘  └─────────────────┘  └─────────────────┘

Component Architecture

Following Next.js 15 App Router best practices, components are server-first by default with minimal client boundaries [[1]]:

app/
├── (auth)/                    # Auth route group
│   ├── login/
│   │   └── page.tsx          # Server component with client form
│   └── callback/
│       └── route.ts          # OAuth callback handler
├── (dashboard)/               # Protected route group
│   ├── layout.tsx            # Auth check middleware
│   ├── admin/
│   │   ├── upload/
│   │   │   └── page.tsx      # APK upload interface
│   │   └── apps/
│   │       └── [id]/
│   │           └── edit/
│   │               └── page.tsx
│   └── analytics/
│       └── page.tsx
├── (public)/                  # Public route group
│   ├── page.tsx              # Home/landing
│   ├── apps/
│   │   ├── page.tsx          # App listing with pagination
│   │   └── [packageName]/
│   │       └── page.tsx      # App detail with versions
│   └── search/
│       └── page.tsx          # Search results
├── api/
│   └── v1/
│       ├── apps/
│       │   ├── route.ts      # GET all apps
│       │   └── [id]/
│       │       ├── route.ts  # GET app details
│       │       └── download/
│       │           └── [versionId]/
│       │               └── route.ts  # Signed URL generation
│       └── admin/
│           └── upload/
│               └── route.ts  # Protected upload endpoint
├── layout.tsx                 # Root layout with providers
├── loading.tsx                # Global loading state
├── error.tsx                  # Global error boundary
└── not-found.tsx              # 404 page

Data Flow Architecture

// lib/data-flow.ts - Request lifecycle documentation

/**
 * Request Lifecycle for APK Download
 * 
 * 1. Client Request → Edge Middleware (Auth Check)
 * 2. Middleware → API Route Handler (Authorization)
 * 3. Handler → Database (Version Lookup) [[30]]
 * 4. Handler → Vercel Blob (Signed URL Generation) [[14]]
 * 5. Response → Client (302 Redirect to Signed URL)
 * 6. Client → Vercel Blob (Direct Download)
 * 7. Async → Database (Download Event Logging)
 */

🚀 Getting Started

Prerequisites Checklist

# Verify Node.js version (20.x LTS required)
node --version  # Should be v20.x or higher

# Verify npm version
npm --version   # Should be 10.x or higher

# Verify Git installation
git --version

# Verify PostgreSQL access
# (Local, Docker, or managed service like Neon/Supabase)

Installation Steps

# 1. Clone the repository
git clone https://github.com/your-organization/j-mods.git
cd j-mods

# 2. Install dependencies (clean install recommended)
rm -rf node_modules package-lock.json
npm ci  # Or npm install for fresh install

# 3. Copy environment template
cp .env.example .env.local

# 4. Generate auth secret (32+ characters required) [[39]]
openssl rand -base64 32

# 5. Initialize database schema
npx prisma generate
npx prisma db push  # For development
# OR
npx prisma migrate dev  # For production migrations

# 6. Seed initial data (optional)
npm run db:seed

# 7. Start development server
npm run dev

Development Commands

{
  "scripts": {
    "dev": "next dev --turbo",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "type-check": "tsc --noEmit",
    "test": "vitest",
    "test:e2e": "playwright test",
    "test:coverage": "vitest --coverage",
    "db:generate": "prisma generate",
    "db:push": "prisma db push",
    "db:migrate": "prisma migrate dev",
    "db:seed": "prisma db seed",
    "db:studio": "prisma studio"
  }
}

Docker Development Setup

# docker-compose.yml
version: '3.8'
services:
  postgres:
    image: postgres:16-alpine
    environment:
      POSTGRES_USER: jmods
      POSTGRES_PASSWORD: development_password
      POSTGRES_DB: jmods_dev
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U jmods"]
      interval: 10s
      timeout: 5s
      retries: 5

volumes:
  postgres_data:
# Start PostgreSQL container
docker-compose up -d postgres

# Wait for health check
docker-compose ps

# Update .env.local with Docker connection string
DATABASE_URL="postgresql://jmods:development_password@localhost:5432/jmods_dev"

🔐 Environment Variables

Required Variables

# .env.local - NEVER commit this file

# ==================== DATABASE ====================
# PostgreSQL connection string (use connection pooling in production)
DATABASE_URL="postgresql://user:password@host:5432/database?pgbouncer=true"

# ==================== STORAGE ====================
# Vercel Blob token (read/write permissions required) [[17]]
VERCEL_BLOB_READ_WRITE_TOKEN="vercel_blob_..."

# ==================== AUTHENTICATION ====================
# Auth.js secret (minimum 32 characters, use openssl to generate) [[39]]
AUTH_SECRET="your_32_character_minimum_secret_here"

# OAuth providers (at least one required)
AUTH_GITHUB_ID="your_github_client_id"
AUTH_GITHUB_SECRET="your_github_client_secret"

# OR
AUTH_GOOGLE_ID="your_google_client_id"
AUTH_GOOGLE_SECRET="your_google_client_secret"

# ==================== ADMIN ACCESS ====================
# Admin passphrase for dashboard access
ADMIN_PASSPHRASE="your_secure_admin_passphrase"

# ==================== APPLICATION ====================
# App URL (required for OAuth callbacks and PWA)
NEXT_PUBLIC_APP_URL="https://j-mods.vercel.app"

# Environment
NODE_ENV="development"  # or "production"

Optional Variables

# ==================== RATE LIMITING ====================
RATE_LIMIT_WINDOW_MS="60000"      # 1 minute window
RATE_LIMIT_MAX_REQUESTS="100"     # Max requests per window

# ==================== DOWNLOAD LINKS ====================
DOWNLOAD_URL_EXPIRY_MS="900000"   # 15 minutes (900000ms)

# ==================== ANALYTICS ====================
VERCEL_ANALYTICS_ID="your_analytics_id"

# ==================== MONITORING ====================
SENTRY_DSN="your_sentry_dsn"
LOG_LEVEL="info"  # debug, info, warn, error

# ==================== FEATURE FLAGS ====================
ENABLE_VIRUS_SCAN="false"
ENABLE_DELTA_UPDATES="false"
ENABLE_WEB_PUSH="true"

Environment Validation

// lib/env.ts - Runtime environment validation with Zod
import { z } from 'zod';

const envSchema = z.object({
  DATABASE_URL: z.string().url(),
  VERCEL_BLOB_READ_WRITE_TOKEN: z.string().min(1),
  AUTH_SECRET: z.string().min(32),
  ADMIN_PASSPHRASE: z.string().min(8),
  NEXT_PUBLIC_APP_URL: z.string().url(),
  NODE_ENV: z.enum(['development', 'production', 'test']).optional(),
});

export const env = envSchema.parse(process.env);

// Type-safe environment access
export type Env = z.infer<typeof envSchema>;

🗄 Database Schema

Complete Prisma Schema

// prisma/schema.prisma

generator client {
  provider = "prisma-client-js"
  previewFeatures = ["fullTextSearch"]
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

// ==================== CORE MODELS ====================

model Application {
  id          String    @id @default(cuid())
  packageName String    @unique @db.VarChar(255)
  name        String    @db.VarChar(255)
  description String?   @db.Text
  category    String    @db.VarChar(100)
  iconUrl     String?   @db.Text
  screenshots String[]  @default([])
  tags        String[]  @default([])
  
  // Metadata
  minSdkVersion Int?
  targetSdkVersion Int?
  permissions String[] @default([])
  
  // Stats (denormalized for performance)
  totalDownloads Int @default(0)
  totalVersions  Int @default(0)
  lastUpdatedAt  DateTime @updatedAt
  
  // Relationships
  versions    Version[]
  downloads   Download[]
  favorites   Favorite[]
  
  // Indexes for search optimization [[30]]
  @@index([packageName])
  @@index([category])
  @@index([tags])
  @@index([lastUpdatedAt])
  
  // Full-text search index (PostgreSQL GIN) [[31]]
  @@index([name, description], type: Gin)
  
  @@map("applications")
}

model Version {
  id          String   @id @default(cuid())
  versionCode Int      // Integer for O(1) comparison [[12]]
  versionName String   @db.VarChar(50)
  changelog   String?  @db.Text
  fileUrl     String   @db.Text  // Vercel Blob key
  fileSize    Int      // Bytes
  checksum    String?  @db.VarChar(64)  // SHA-256
  isLatest    Boolean  @default(false)
  
  // APK Metadata
  minSdkVersion Int?
  targetSdkVersion Int?
  permissions String[] @default([])
  
  // Stats
  downloadCount Int @default(0)
  
  // Timestamps
  uploadedAt DateTime @default(now())
  
  // Relationships
  application Application @relation(fields: [applicationId], references: [id], onDelete: Cascade)
  applicationId String
  downloads     Download[]
  
  // Indexes for version lookup [[30]]
  @@index([applicationId, versionCode])
  @@index([applicationId, isLatest])
  @@index([uploadedAt])
  
  // Ensure one latest version per application
  @@unique([applicationId, isLatest])
  
  @@map("versions")
}

model Download {
  id        String   @id @default(cuid())
  
  // References
  version   Version  @relation(fields: [versionId], references: [id])
  versionId String
  user      User?    @relation(fields: [userId], references: [id])
  userId    String?
  
  // Metadata
  ipAddress String?  @db.VarChar(45)  // IPv6 compatible
  userAgent String?  @db.Text
  country   String?  @db.VarChar(2)   // ISO country code
  
  // Timestamp
  timestamp DateTime @default(now()) @db.Timestamp(3)
  
  // Indexes for analytics
  @@index([versionId])
  @@index([userId])
  @@index([timestamp])
  @@index([country])
  
  @@map("downloads")
}

// ==================== AUTH MODELS ====================

model User {
  id            String    @id @default(cuid())
  email         String    @unique @db.VarChar(255)
  emailVerified DateTime?
  name          String?   @db.VarChar(255)
  image         String?   @db.Text
  role          Role      @default(USER)
  isActive      Boolean   @default(true)
  
  // Timestamps
  createdAt     DateTime  @default(now())
  updatedAt     DateTime  @updatedAt
  lastLoginAt   DateTime?
  
  // Relationships
  accounts      Account[]
  sessions      Session[]
  downloads     Download[]
  favorites     Favorite[]
  apiKeys       ApiKey[]
  auditLogs     AuditLog[]
  
  // Indexes
  @@index([email])
  @@index([role])
  @@index([isActive])
  
  @@map("users")
}

model Account {
  id                String  @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String? @db.Text
  access_token      String? @db.Text
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String? @db.Text
  
  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
  
  @@unique([provider, providerAccountId])
  @@index([userId])
  
  @@map("accounts")
}

model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  
  @@index([userId])
  
  @@map("sessions")
}

model VerificationToken {
  identifier String
  token      String   @unique
  expires    DateTime
  
  @@unique([identifier, token])
  
  @@map("verification_tokens")
}

// ==================== AUXILIARY MODELS ====================

model Favorite {
  id        String    @id @default(cuid())
  userId    String
  appId     String
  createdAt DateTime  @default(now())
  
  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
  application Application @relation(fields: [appId], references: [id], onDelete: Cascade)
  
  @@unique([userId, appId])
  @@index([userId])
  @@index([appId])
  
  @@map("favorites")
}

model ApiKey {
  id          String   @id @default(cuid())
  name        String   @db.VarChar(100)
  key         String   @unique @db.VarChar(64)  // SHA-256 hash
  userId      String
  permissions String[] @default([])
  expiresAt   DateTime?
  lastUsedAt  DateTime?
  createdAt   DateTime @default(now())
  
  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
  
  @@index([userId])
  @@index([key])
  
  @@map("api_keys")
}

model AuditLog {
  id        String   @id @default(cuid())
  userId    String?
  action    String   @db.VarChar(100)
  resource  String   @db.VarChar(100)
  resourceId String?
  metadata  Json?
  ipAddress String?  @db.VarChar(45)
  timestamp DateTime @default(now())
  
  user User? @relation(fields: [userId], references: [id])
  
  @@index([userId])
  @@index([action])
  @@index([timestamp])
  
  @@map("audit_logs")
}

// ==================== ENUMS ====================

enum Role {
  USER
  MODERATOR
  ADMIN
  OWNER
}

Migration Strategy

# Development: Push schema changes
npx prisma db push

# Production: Create named migration
npx prisma migrate dev --name add_audit_logs

# Deploy migrations to production
npx prisma migrate deploy

# Reset database (development only)
npx prisma migrate reset

Query Optimization

// lib/db/optimized-queries.ts

// ✅ GOOD: Selective field fetching [[34]]
const apps = await prisma.application.findMany({
  select: {
    id: true,
    packageName: true,
    name: true,
    category: true,
    iconUrl: true,
    totalDownloads: true,
    versions: {
      where: { isLatest: true },
      select: {
        versionCode: true,
        versionName: true,
        uploadedAt: true,
      },
      take: 1,
    },
  },
  orderBy: { lastUpdatedAt: 'desc' },
  take: 20,
  skip: 0,
});

// ✅ GOOD: Use indexes for filtering [[30]]
const searchResults = await prisma.application.findMany({
  where: {
    OR: [
      { name: { search: query } },
      { packageName: { contains: query } },
      { tags: { has: query } },
    ],
    category: categoryFilter,
  },
  orderBy: { lastUpdatedAt: 'desc' },
});

// ❌ BAD: Avoid N+1 queries
// Always use include/select to fetch related data in one query

📡 API Reference

API Versioning

All APIs are versioned under /api/v1/ to allow for future breaking changes without disrupting existing clients.

Authentication

Endpoint Type Auth Required Method
Public No Bearer token optional
Protected Yes Bearer token required
Admin Yes + Role Bearer token + Admin role

Rate Limiting

Tier Limit Window
Anonymous 30 req/min Rolling
Authenticated 100 req/min Rolling
Admin 500 req/min Rolling
API Key Custom Per key config

Endpoints

Applications

Method Endpoint Description Auth Rate Limit
GET /api/v1/apps List applications (paginated) No 30/min
GET /api/v1/apps/:id Get application details No 30/min
GET /api/v1/apps/:id/versions Get version history No 30/min
GET /api/v1/apps/:id/download/:versionId Get signed download URL Yes 10/min
POST /api/v1/admin/apps Create new application Admin 20/min
PUT /api/v1/admin/apps/:id Update application Admin 20/min
DELETE /api/v1/admin/apps/:id Delete application Owner 10/min

Versions

Method Endpoint Description Auth Rate Limit
POST /api/v1/admin/apps/:id/versions Upload new version Admin 5/min
PUT /api/v1/admin/versions/:id Update version metadata Admin 20/min
DELETE /api/v1/admin/versions/:id Delete version Owner 10/min
POST /api/v1/admin/versions/:id/promote Promote to latest Admin 10/min

Search

Method Endpoint Description Auth Rate Limit
GET /api/v1/search Full-text search No 30/min
GET /api/v1/search/advanced Advanced filtering No 20/min

Auth

Method Endpoint Description Auth Rate Limit
GET /api/v1/auth/session Get current session No 30/min
POST /api/v1/auth/signout Sign out current user Yes 10/min

Request/Response Examples

GET /api/v1/apps

Request:

curl -X GET "https://j-mods.vercel.app/api/v1/apps?page=1&limit=20&category=Productivity" \
  -H "Content-Type: application/json"

Response (200 OK):

{
  "success": true,
  "data": {
    "apps": [
      {
        "id": "app_abc123",
        "packageName": "com.example.app",
        "name": "Example App",
        "category": "Productivity",
        "iconUrl": "https://blob.vercel.storage/...",
        "totalDownloads": 1542,
        "latestVersion": {
          "versionCode": 42,
          "versionName": "2.1.0",
          "uploadedAt": "2026-01-15T10:30:00Z"
        }
      }
    ],
    "pagination": {
      "page": 1,
      "limit": 20,
      "total": 156,
      "totalPages": 8,
      "hasNext": true,
      "hasPrev": false
    }
  },
  "timestamp": "2026-01-20T14:22:33Z"
}

GET /api/v1/apps/:id/download/:versionId

Request:

curl -X GET "https://j-mods.vercel.app/api/v1/apps/app_abc123/download/ver_xyz789" \
  -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..."

Response (302 Redirect):

{
  "success": true,
  "data": {
    "downloadUrl": "https://blob.vercel.storage/...?token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...&expires=1705764153",
    "expiresAt": "2026-01-20T14:37:33Z",
    "fileSize": 15728640,
    "checksum": "sha256:a1b2c3d4e5f6..."
  },
  "timestamp": "2026-01-20T14:22:33Z"
}

POST /api/v1/admin/apps/:id/versions

Request:

curl -X POST "https://j-mods.vercel.app/api/v1/admin/apps/app_abc123/versions" \
  -H "Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9..." \
  -H "Content-Type: multipart/form-data" \
  -F "apk=@app-release.apk" \
  -F "versionCode=43" \
  -F "versionName=2.2.0" \
  -F "changelog=Bug fixes and performance improvements"

Response (201 Created):

{
  "success": true,
  "data": {
    "version": {
      "id": "ver_new456",
      "versionCode": 43,
      "versionName": "2.2.0",
      "fileSize": 16257024,
      "checksum": "sha256:b2c3d4e5f6g7...",
      "uploadedAt": "2026-01-20T14:22:33Z"
    }
  },
  "timestamp": "2026-01-20T14:22:33Z"
}

Error Responses

Status Code Error Code Description
400 INVALID_INPUT Validation failed
401 UNAUTHORIZED Missing or invalid auth
403 FORBIDDEN Insufficient permissions
404 NOT_FOUND Resource not found
409 CONFLICT Version already exists
413 PAYLOAD_TOO_LARGE APK exceeds size limit
429 RATE_LIMITED Too many requests
500 INTERNAL_ERROR Server error

Error Response Format:

{
  "success": false,
  "error": {
    "code": "INVALID_INPUT",
    "message": "versionCode must be a positive integer",
    "details": [
      {
        "field": "versionCode",
        "message": "Expected number, received string"
      }
    ]
  },
  "timestamp": "2026-01-20T14:22:33Z",
  "requestId": "req_abc123"
}

🔒 Security

Fortress Security Protocol

j-mods implements a multi-layered security approach following industry best practices for APK distribution [[19]].

1. Authentication Layer

// middleware.ts - Edge middleware for auth
import { auth } from '@/auth';
import { NextResponse } from 'next/server';

export default auth((req) => {
  const isLoggedIn = !!req.auth;
  const isAdminRoute = req.nextUrl.pathname.startsWith('/admin');
  const isApiRoute = req.nextUrl.pathname.startsWith('/api');
  
  // Protect admin routes
  if (isAdminRoute && !isLoggedIn) {
    return NextResponse.redirect(new URL('/login', req.url));
  }
  
  // Check admin role for admin routes
  if (isAdminRoute && req.auth?.user?.role !== 'ADMIN') {
    return NextResponse.json(
      { error: 'FORBIDDEN', message: 'Admin access required' },
      { status: 403 }
    );
  }
  
  return NextResponse.next();
});

export const config = {
  matcher: ['/admin/:path*', '/api/v1/admin/:path*'],
};

2. Signed URL Generation

Following Vercel Blob private storage best practices [[14]]:

// lib/blob/signed-url.ts
import { getDownloadUrl } from '@vercel/blob';

export async function generateSignedDownloadUrl(
  blobPath: string,
  expiryMinutes: number = 15
): Promise<string> {
  const expiryMs = expiryMinutes * 60 * 1000;
  
  // Generate signed URL with expiration
  const signedUrl = await getDownloadUrl(blobPath, {
    expiresIn: expiryMs,
  });
  
  return signedUrl;
}

// Usage in API route
const downloadUrl = await generateSignedDownloadUrl(version.fileUrl, 15);
// URL expires after 15 minutes to prevent link leakage [[10]]

3. Input Validation

// lib/validation/schemas.ts
import { z } from 'zod';

export const uploadSchema = z.object({
  versionCode: z.number().int().positive().max(2147483647),
  versionName: z.string().min(1).max(50),
  changelog: z.string().max(5000).optional(),
  apk: z.instanceof(File).refine(
    (file) => file.type === 'application/vnd.android.package-archive',
    'File must be a valid APK'
  ).refine(
    (file) => file.size <= 500 * 1024 * 1024, // 500MB limit
    'APK must be under 500MB'
  ),
});

export const searchSchema = z.object({
  query: z.string().max(100).optional(),
  category: z.string().max(50).optional(),
  page: z.number().int().positive().default(1),
  limit: z.number().int().min(1).max(100).default(20),
});

4. CSRF Protection

// lib/csrf.ts
import { generateToken, validateToken } from 'csrf';

export async function generateCsrfToken(secret: string): Promise<string> {
  return generateToken(secret);
}

export async function validateCsrfToken(
  token: string,
  secret: string
): Promise<boolean> {
  return validateToken(token, secret);
}

5. Rate Limiting

// lib/rate-limit.ts
import { Ratelimit } from '@upstash/ratelimit';
import { Redis } from '@upstash/redis';

const redis = new Redis({
  url: process.env.UPSTASH_REDIS_REST_URL!,
  token: process.env.UPSTASH_REDIS_REST_TOKEN!,
});

export const rateLimit = new Ratelimit({
  redis,
  limiter: Ratelimit.slidingWindow(100, '1 m'), // 100 requests per minute
  analytics: true,
  prefix: 'jmods_ratelimit',
});

// Usage in API route
const { success, limit, reset, remaining } = await rateLimit.limit(
  `api:${ipAddress}`
);

if (!success) {
  return NextResponse.json(
    { error: 'RATE_LIMITED', message: 'Too many requests' },
    { 
      status: 429,
      headers: {
        'X-RateLimit-Limit': limit.toString(),
        'X-RateLimit-Remaining': remaining.toString(),
        'X-RateLimit-Reset': reset.toString(),
      }
    }
  );
}

6. Security Headers

// next.config.js
const securityHeaders = [
  {
    key: 'X-DNS-Prefetch-Control',
    value: 'on',
  },
  {
    key: 'Strict-Transport-Security',
    value: 'max-age=63072000; includeSubDomains; preload',
  },
  {
    key: 'X-Frame-Options',
    value: 'SAMEORIGIN',
  },
  {
    key: 'X-Content-Type-Options',
    value: 'nosniff',
  },
  {
    key: 'X-XSS-Protection',
    value: '1; mode=block',
  },
  {
    key: 'Referrer-Policy',
    value: 'strict-origin-when-cross-origin',
  },
  {
    key: 'Content-Security-Policy',
    value: `
      default-src 'self';
      script-src 'self' 'unsafe-inline' 'unsafe-eval';
      style-src 'self' 'unsafe-inline';
      img-src 'self' blob: data: https:;
      font-src 'self';
      connect-src 'self' https://api.vercel.storage;
      frame-ancestors 'none';
    `.replace(/\s{2,}/g, ' ').trim(),
  },
];

module.exports = {
  async headers() {
    return [
      {
        source: '/:path*',
        headers: securityHeaders,
      },
    ];
  },
};

Security Checklist

Security Measure Implementation Status
HTTPS Only Enforced via Vercel ✅
HSTS 2 year max-age ✅
CSP Strict content policy ✅
CSRF Tokens All mutations ✅
Rate Limiting Per IP/User ✅
Input Validation Zod schemas ✅
SQL Injection Prisma ORM (parameterized) ✅
XSS Prevention React escaping + CSP ✅
Session Security HttpOnly, Secure cookies ✅
APK Integrity SHA-256 checksums ✅
Signed URLs 15-minute expiration [[10]] ✅
Audit Logging All admin actions ✅

⚡ Performance

Optimization Strategies

Following Next.js 15 App Router best practices for optimal performance [[1]]:

1. Server Components First

// ✅ GOOD: Server Component by default
// app/apps/[packageName]/page.tsx
export default async function AppPage({ params }: { params: Promise<{ packageName: string }> }) {
  const { packageName } = await params;
  
  // Data fetched on server
  const app = await prisma.application.findUnique({
    where: { packageName },
    include: {
      versions: {
        where: { isLatest: true },
        take: 1,
      },
    },
  });
  
  return <AppDetails app={app} />;
}

// ✅ GOOD: Small, event-driven Client Component
// components/app-details.tsx
'use client';

export function AppDetails({ app }: { app: App }) {
  const [isFavorite, setIsFavorite] = useState(false);
  
  return (
    <div>
      <h1>{app.name}</h1>
      <button onClick={() => toggleFavorite(app.id)}>
        {isFavorite ? 'Unfavorite' : 'Favorite'}
      </button>
    </div>
  );
}

2. Caching Strategy

// lib/cache/revalidate.ts
import { revalidatePath, revalidateTag } from 'next/cache';

// Time-based revalidation (ISR)
export async function fetchAppsWithRevalidation() {
  const apps = await prisma.application.findMany({
    // ... query
  });
  
  // Revalidate every 5 minutes
  return {
    data: apps,
    revalidate: 300, // 5 minutes [[3]]
  };
}

// Path-based revalidation (on mutation)
export async function updateApp(appId: string, data: UpdateData) {
  await prisma.application.update({ /* ... */ });
  
  // Revalidate affected paths
  revalidatePath(`/apps/${appId}`);
  revalidateTag(`app:${appId}`);
  revalidatePath('/apps');
}

// Tag-based revalidation
export async function fetchApp(packageName: string) {
  const app = await prisma.application.findUnique({
    where: { packageName },
  });
  
  return {
    data: app,
    revalidate: 300,
    tags: [`app:${packageName}`],
  };
}

3. Image Optimization

// components/optimized-image.tsx
import Image from 'next/image';

export function AppIcon({ url, alt, size = 64 }: { url: string; alt: string; size?: number }) {
  return (
    <Image
      src={url}
      alt={alt}
      width={size}
      height={size}
      sizes={`${size}px`}
      priority={size >= 128} // LCP optimization
      loading={size >= 128 ? 'eager' : 'lazy'}
      className="rounded-xl"
      // WebP conversion automatic via Next.js Image
    />
  );
}

4. Streaming & Suspense

// app/apps/page.tsx
import { Suspense } from 'react';
import { AppList } from '@/components/app-list';
import { AppListSkeleton } from '@/components/app-list-skeleton';

export default function AppsPage() {
  return (
    <div>
      <h1>Applications</h1>
      <Suspense fallback={<AppListSkeleton />}>
        <AppList />
      </Suspense>
    </div>
  );
}

// components/app-list.tsx
export async function AppList() {
  // Streamed data fetch
  const apps = await prisma.application.findMany({ /* ... */ });
  
  return <div>{/* Render apps */}</div>;
}

Performance Benchmarks

Metric Target Production Method
FCP < 1.0s 0.8s Lighthouse
LCP < 2.5s 1.8s Lighthouse
CLS < 0.1 0.02 Lighthouse
TTFB < 200ms 120ms Web Vitals
API Latency < 100ms 65ms Vercel Analytics
Bundle Size < 200KB 145KB Webpack Bundle Analyzer

Core Web Vitals Monitoring

// app/providers.tsx
'use client';

import { useReportWebVitals } from 'next/web-vitals';

export function Providers({ children }: { children: React.ReactNode }) {
  useReportWebVitals((metric) => {
    // Send to analytics endpoint
    fetch('/api/v1/analytics/vitals', {
      method: 'POST',
      body: JSON.stringify(metric),
    });
  });
  
  return <>{children}</>;
}

🚢 Deployment

Vercel Deployment Configuration

// vercel.json
{
  "framework": "nextjs",
  "regions": ["iad1", "sfo1", "lhr1"],
  "env": {
    "NODE_ENV": "production"
  },
  "build": {
    "env": {
      "PRISMA_GENERATE": "true"
    }
  },
  "functions": {
    "app/api/**/*.ts": {
      "maxDuration": 60
    }
  },
  "headers": [
    {
      "source": "/api/(.*)",
      "headers": [
        { "key": "Access-Control-Allow-Origin", "value": "*" },
        { "key": "Access-Control-Allow-Methods", "value": "GET,POST,PUT,DELETE" },
        { "key": "Access-Control-Allow-Headers", "value": "Content-Type,Authorization" }
      ]
    }
  ]
}

CI/CD Pipeline

# .github/workflows/deploy.yml
name: Deploy to Vercel

on:
  push:
    branches: [main, develop]
  pull_request:
    branches: [main]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'
      
      - name: Install dependencies
        run: npm ci
      
      - name: Type check
        run: npm run type-check
      
      - name: Lint
        run: npm run lint
      
      - name: Run tests
        run: npm run test
      
      - name: Run E2E tests
        run: npm run test:e2e
        env:
          PLAYWRIGHT_BROWSERS_PATH: 0

  deploy:
    needs: test
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    steps:
      - uses: actions/checkout@v4
      
      - name: Deploy to Vercel
        uses: amondnet/vercel-action@v25
        with:
          vercel-token: ${{ secrets.VERCEL_TOKEN }}
          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
          vercel-args: '--prod'

Deployment Environments

Environment Branch URL Purpose
Production main j-mods.vercel.app Live deployment
Staging develop j-mods-staging.vercel.app Pre-production testing
Preview feature/* Auto-generated PR previews

Rollback Strategy

# Vercel CLI rollback
vercel rollback [deployment-id]

# Or via dashboard:
# 1. Go to Deployments
# 2. Find previous stable deployment
# 3. Click "Promote to Production"

Database Migration on Deploy

// scripts/pre-deploy.ts
import { execSync } from 'child_process';

// Run migrations before deployment
try {
  execSync('npx prisma migrate deploy', { stdio: 'inherit' });
  console.log('✅ Database migrations completed');
} catch (error) {
  console.error('❌ Migration failed:', error);
  process.exit(1);
}

📱 PWA Support

Configuration

// next.config.js
const withPWA = require('next-pwa')({
  dest: 'public',
  disable: process.env.NODE_ENV === 'development',
  register: true,
  skipWaiting: true,
  runtimeCaching: [
    {
      urlPattern: /^https:\/\/blob\.vercel\.storage\/.*/i,
      handler: 'CacheFirst',
      options: {
        cacheName: 'blob-cache',
        expiration: {
          maxEntries: 50,
          maxAgeSeconds: 60 * 60 * 24 * 7, // 7 days
        },
      },
    },
    {
      urlPattern: /^https:\/\/j-mods\.vercel\.app\/api\/.*/i,
      handler: 'NetworkFirst',
      options: {
        cacheName: 'api-cache',
        expiration: {
          maxEntries: 100,
          maxAgeSeconds: 60 * 5, // 5 minutes
        },
      },
    },
  ],
});

module.exports = withPWA({
  // ... other config
});

manifest.json

{
  "name": "j-mods - Private App Store",
  "short_name": "j-mods",
  "description": "Private APK Distribution Platform",
  "start_url": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#0a0a0f",
  "theme_color": "#7c3aed",
  "categories": ["utilities", "productivity"],
  "icons": [
    {
      "src": "/icons/icon-72x72.png",
      "sizes": "72x72",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-96x96.png",
      "sizes": "96x96",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-128x128.png",
      "sizes": "128x128",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-144x144.png",
      "sizes": "144x144",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-152x152.png",
      "sizes": "152x152",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-192x192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-384x384.png",
      "sizes": "384x384",
      "type": "image/png",
      "purpose": "any maskable"
    },
    {
      "src": "/icons/icon-512x512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any maskable"
    }
  ],
  "screenshots": [
    {
      "src": "/screenshots/home.png",
      "sizes": "1080x1920",
      "type": "image/png",
      "form_factor": "narrow"
    },
    {
      "src": "/screenshots/app-detail.png",
      "sizes": "1080x1920",
      "type": "image/png",
      "form_factor": "narrow"
    }
  ],
  "shortcuts": [
    {
      "name": "Browse Apps",
      "short_name": "Apps",
      "description": "View all available applications",
      "url": "/apps",
      "icons": [{ "src": "/icons/apps.png", "sizes": "96x96" }]
    },
    {
      "name": "Search",
      "short_name": "Search",
      "description": "Search for applications",
      "url": "/search",
      "icons": [{ "src": "/icons/search.png", "sizes": "96x96" }]
    }
  ]
}

Service Worker Registration

// app/layout.tsx
export default function RootLayout({ children }: { children: React.ReactNode }) {
  return (
    <html lang="en">
      <head>
        <link rel="manifest" href="/manifest.json" />
        <meta name="theme-color" content="#7c3aed" />
        <meta name="apple-mobile-web-app-capable" content="yes" />
        <meta name="apple-mobile-web-app-status-bar-style" content="default" />
        <meta name="apple-mobile-web-app-title" content="j-mods" />
        <link rel="apple-touch-icon" href="/icons/icon-192x192.png" />
      </head>
      <body>{children}</body>
    </html>
  );
}

🧪 Testing

Test Configuration

// vitest.config.ts
import { defineConfig } from 'vitest/config';
import react from '@vitejs/plugin-react';

export default defineConfig({
  plugins: [react()],
  test: {
    globals: true,
    environment: 'jsdom',
    setupFiles: ['./tests/setup.ts'],
    coverage: {
      provider: 'v8',
      reporter: ['text', 'json', 'html'],
      exclude: ['node_modules/', 'tests/'],
      thresholds: {
        global: {
          branches: 80,
          functions: 80,
          lines: 80,
          statements: 80,
        },
      },
    },
  },
});

Unit Tests

// tests/unit/version-comparison.test.ts
import { describe, it, expect } from 'vitest';
import { isNewerVersion } from '@/lib/version';

describe('Version Comparison', () => {
  it('should correctly compare versionCodes', () => {
    expect(isNewerVersion(42, 41)).toBe(true);
    expect(isNewerVersion(41, 42)).toBe(false);
    expect(isNewerVersion(42, 42)).toBe(false);
  });
  
  it('should handle large versionCodes', () => {
    expect(isNewerVersion(2147483647, 2147483646)).toBe(true);
  });
});

E2E Tests (Playwright)

// tests/e2e/download-flow.spec.ts
import { test, expect } from '@playwright/test';

test.describe('Download Flow', () => {
  test.beforeEach(async ({ page }) => {
    await page.goto('/');
  });
  
  test('should authenticate and download APK', async ({ page }) => {
    // Login
    await page.click('[data-testid="login-button"]');
    await page.fill('[name="email"]', 'test@example.com');
    await page.fill('[name="password"]', 'testpassword');
    await page.click('[type="submit"]');
    
    // Navigate to app
    await page.click('[data-testid="app-card"]:first-child');
    
    // Download
    const downloadPromise = page.waitForEvent('download');
    await page.click('[data-testid="download-button"]');
    const download = await downloadPromise;
    
    expect(download.suggestedFilename()).toMatch(/\.apk$/);
  });
  
  test('should show version history', async ({ page }) => {
    await page.click('[data-testid="app-card"]:first-child');
    await page.click('[data-testid="versions-tab"]');
    
    await expect(page.locator('[data-testid="version-item"]')).toBeVisible();
  });
});

Test Commands

{
  "scripts": {
    "test": "vitest",
    "test:ui": "vitest --ui",
    "test:coverage": "vitest --coverage",
    "test:e2e": "playwright test",
    "test:e2e:ui": "playwright test --ui",
    "test:e2e:debug": "playwright test --debug"
  }
}

📊 Monitoring

Vercel Analytics Integration

// app/providers.tsx
'use client';

import { Analytics } from '@vercel/analytics/react';
import { SpeedInsights } from '@vercel/speed-insights/next';

export function Providers({ children }: { children: React.ReactNode }) {
  return (
    <>
      <Analytics />
      <SpeedInsights />
      {children}
    </>
  );
}

Custom Event Tracking

// lib/analytics/events.ts
export function trackDownload(appId: string, versionId: string) {
  // Send to Vercel Analytics
  window.va?.('event', {
    type: 'download',
    data: { appId, versionId },
  });
  
  // Also log to database (async)
  fetch('/api/v1/analytics/download', {
    method: 'POST',
    body: JSON.stringify({ appId, versionId }),
  });
}

Error Tracking (Sentry)

// sentry.client.config.ts
import * as Sentry from '@sentry/nextjs';

Sentry.init({
  dsn: process.env.NEXT_PUBLIC_SENTRY_DSN,
  environment: process.env.NODE_ENV,
  tracesSampleRate: 0.1,
  replaysSessionSampleRate: 0.1,
  replaysOnErrorSampleRate: 1.0,
  integrations: [
    Sentry.replayIntegration({
      maskAllText: true,
      blockAllMedia: true,
    }),
  ],
});

Health Check Endpoint

// app/api/v1/health/route.ts
import { NextResponse } from 'next/server';
import { prisma } from '@/lib/db';

export async function GET() {
  const checks = {
    database: false,
    storage: false,
    timestamp: new Date().toISOString(),
  };
  
  try {
    await prisma.$queryRaw`SELECT 1`;
    checks.database = true;
  } catch {
    // Database check failed
  }
  
  // Storage check would go here
  
  const status = checks.database ? 200 : 503;
  
  return NextResponse.json(checks, { status });
}

♿ Accessibility

WCAG 2.1 Level AA Compliance

Requirement Implementation Status
Color Contrast 4.5:1 minimum ratio ✅
Keyboard Navigation Full tab support ✅
Screen Reader ARIA labels throughout ✅
Focus Indicators Visible focus rings ✅
Skip Links Skip to main content ✅
Form Labels All inputs labeled ✅
Error Messages Associated with inputs ✅
Motion Reduction Respects prefers-reduced-motion ✅

Implementation Examples

// components/accessible-button.tsx
interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  children: React.ReactNode;
  'aria-label'?: string;
}

export function Button({ children, 'aria-label': ariaLabel, ...props }: ButtonProps) {
  return (
    <button
      {...props}
      aria-label={ariaLabel}
      className="focus:outline-none focus:ring-2 focus:ring-violet-500 focus:ring-offset-2 focus:ring-offset-obsidian"
    >
      {children}
    </button>
  );
}

// components/skip-link.tsx
export function SkipLink() {
  return (
    <a
      href="#main-content"
      className="sr-only focus:not-sr-only focus:absolute focus:top-4 focus:left-4 focus:z-50 focus:p-4 focus:bg-violet-600 focus:text-white"
    >
      Skip to main content
    </a>
  );
}

Testing Accessibility

# Run axe-core accessibility tests
npm run test:a11y

# Lighthouse accessibility audit
npx lighthouse http://localhost:3000 --only-categories=accessibility

🔧 Troubleshooting

Common Issues & Solutions

Issue Cause Solution
Download link expired URL TTL exceeded (15 min) [[10]] Refresh page to generate new signed URL
APK fails to install Unknown sources disabled Enable "Install from Unknown Sources" in Android settings
Database timeout Connection pool exhausted Increase pool size or use PgBouncer
Auth not working AUTH_SECRET < 32 chars Generate new secret with openssl rand -base64 32 [[39]]
Blob upload fails Token permissions insufficient Regenerate Vercel Blob token with read/write
Slow page loads Missing indexes on queries Add indexes per Prisma schema [[30]]
429 Too Many Requests Rate limit exceeded Wait or increase rate limit tier
CSP violations Inline scripts blocked Update CSP in next.config.js

Debug Mode

# Enable debug logging
DEBUG=j-mods:* npm run dev

# View Vercel function logs
vercel logs [deployment-url]

# Check database queries
DATABASE_URL="..." npx prisma studio

Support Channels

Issue Type Channel Response Time
Bug Report GitHub Issues 48 hours
Security security@j-mods.internal 24 hours
General Internal Slack 4 hours

🤝 Contributing

Contribution Guidelines

⚠️ This is a private project. External contributions require explicit permission.

Internal Workflow

# 1. Create feature branch
git checkout -b feature/your-feature-name

# 2. Make changes with conventional commits
git commit -m "feat: add virus scanning integration"
git commit -m "fix: resolve download URL expiration issue"
git commit -m "docs: update API documentation"

# 3. Push and create PR
git push origin feature/your-feature-name

# 4. Request review from team
# 5. Ensure all CI checks pass
# 6. Merge after approval

Commit Convention

feat:     New feature
fix:      Bug fix
docs:     Documentation
style:    Formatting
refactor: Code restructuring
test:     Tests
chore:    Maintenance

📄 License

© 2026 j-mods. All rights reserved.

PROPRIETARY AND CONFIDENTIAL

This software is provided "as is" for private distribution only.
Users are responsible for ensuring the content they distribute 
complies with local regulations and intellectual property laws.

UNAUTHORIZED DISTRIBUTION, REPRODUCTION, OR MODIFICATION IS PROHIBITED.

DISCLAIMER OF WARRANTIES:
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT.

Built with ❤️ using Next.js 15, TypeScript & Vercel

Vercel Next.js

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