🛡️ DLP Frontend - Data Loss Prevention Dashboard

A comprehensive, modern web application for data loss prevention and enterprise security management.

Features • Installation • Documentation • Contributing

🌟 Overview

The DLP Dashboard is an enterprise-grade security platform that provides comprehensive tools for:

🔐 Secure Authentication - Multi-factor authentication with TOTP, Passkeys, and OAuth
👥 User Management - Complete lifecycle management with role-based access control
📱 Device Monitoring - Real-time device tracking and policy enforcement
📊 Analytics & Reporting - Comprehensive dashboards with actionable insights.
🔒 Data Protection - Advanced DLP policies to prevent unauthorized data exfiltration

🚀 Key Features

🔐 Authentication & Security

Multi-Factor Authentication (MFA)

TOTP (Time-based One-Time Password)
- Secure 2FA setup with QR code generation
- Compatible with Google Authenticator, Authy, and other authenticator apps
- Manual entry key fallback for accessibility
- Session-based setup flow with temporary tokens
- Automatic token expiration and validation
Passkey Support (WebAuthn/FIDO2)
- Passwordless authentication using biometrics or security keys
- Device-bound credentials for enhanced security
- Multiple passkey registration per user
- Last usage tracking and management
- Cross-platform compatibility (Windows Hello, Face ID, Touch ID)
JWT-based Sessions
- Secure token management with automatic expiration
- Token refresh mechanism
- Client-side token validation
- Secure localStorage with fallback mechanisms
Role-Based Access Control (RBAC)
- Granular permission system
- Admin and User role separation
- Protected routes with automatic redirection
- Context-based authentication state management

Google OAuth Integration

Single Sign-On (SSO) capability
Seamless user onboarding
Profile information synchronization

👨‍💼 Admin Features

Dashboard & Analytics

Real-time Statistics Dashboard

User Metrics
- Total active users
- New user registrations
- User activity trends
Device Statistics
- Total registered devices
- Active device count
- Device compliance status
Group Management
- User group overview
- Group membership statistics
- Group policy distribution

System Overview

Parallel data fetching for optimal performance
Loading states with visual indicators (Commet loader)
Error handling with user-friendly messages
Responsive grid layout for statistics cards

User Management

Complete User Lifecycle

Create Users
- Individual user creation with detailed form
- Username, email, and role assignment
- Password generation or custom password
- Initial access setup
Edit Users
- Update user information
- Modify roles and permissions
- Enable/disable user accounts
- Password reset functionality
Delete Users
- Safe user deletion with confirmation
- Cascading deletion handling
- Audit trail maintenance

Bulk Operations

CSV Import/Export
- Mass user creation via CSV upload
- Template download for correct formatting
- Validation and error reporting
- Progress tracking for large imports
- Export user data for reporting

Advanced Features

User Search & Filter
- Real-time search across user attributes
- Filter by role, status, and group
- Sortable columns (name, email, created date)
User Modal
- Quick view user details
- Inline editing capabilities
- Action buttons (edit, delete, reset password)
Checkbox Selection
- Multi-select for bulk operations
- Select all/deselect all functionality
- Bulk action menu

User Group Management

Group Operations

Create Groups
- Custom group naming
- Description and metadata
- Initial member assignment
Group Membership
- Add/remove users from groups
- View group members list
- Member count tracking
- Nested group support

Group Navigation

Dynamic routing to group details
Member management interface
Group-based policy application

Device Management

Device Features

Device registration and tracking
Device overview page with sidebar
Device logs and activity monitoring
Device profile management
Device settings and configuration
Compliance reporting

👤 User Features

Applications Dashboard

Application Catalog

Visual Application Grid
- Logo display with fallback initials
- Clean card-based layout
- Responsive grid (2-4 columns based on screen size)

Search & Filter

Real-time Search
- Instant search as you type
- Case-insensitive matching
- Search icon indicator
Favorites System
- Star/unstar applications
- Favorites tab for quick access
- Favorite count in tab badge

Pre-configured Applications

AWS Cloud
Google Chrome
Mozilla Firefox
Notion
Motrix
Visual Studio Code
Figma
Slack

Passkey Management

Passkey Features

Register Passkey
- One-click registration
- Browser-native biometric prompt
- Automatic device detection
View Registered Passkeys
- Credential ID display (truncated for security)
- Device type information
- Registration date
- Last used timestamp
- Sortable table view
Delete Passkeys
- Individual passkey removal
- Confirmation dialog
- Immediate UI update
- Toast notifications for success/error

Profile & Settings

Personal profile management
Update contact information
Security preferences
Password change
Session management
Activity history

🛠 Technical Architecture

Frontend Stack

┌─────────────────────────────────────────────────────────┐
│                     Next.js 15.1.1                       │
│              (App Router + Server Components)            │
├─────────────────────────────────────────────────────────┤
│                      React 19.0.0                        │
│           (Client Components + Hooks + Context)          │
├─────────────────────────────────────────────────────────┤
│                   TypeScript 5.0+                        │
│              (Type Safety + Interfaces)                  │
├─────────────────────────────────────────────────────────┤
│              Tailwind CSS 3.4 + Radix UI                │
│         (Responsive Design + Accessible Components)      │
└─────────────────────────────────────────────────────────┘

Key Dependencies

Package	Version	Purpose
`next`	15.1.1	React framework with SSR/SSG
`react`	19.0.0	UI library
`typescript`	5.0+	Type safety
`tailwindcss`	3.4.1	Utility-first CSS
`@simplewebauthn/browser`	13.2.0	WebAuthn/Passkey support
`otplib`	12.0.1	TOTP generation/validation
`jwt-decode`	4.0.0	JWT token decoding
`react-hot-toast`	2.5.2	Toast notifications
`lucide-react`	0.469.0	Icon library
`@radix-ui/*`	Latest	Accessible UI primitives

Project Structure

dlp-frontend/
├── src/
│   ├── app/                      # Next.js App Router
│   │   ├── admin/               # Admin-only pages
│   │   │   ├── dashboard/       # Analytics dashboard
│   │   │   ├── users/           # User management
│   │   │   ├── user-groups/     # Group management
│   │   │   └── device/          # Device management
│   │   ├── auth/                # Authentication pages
│   │   │   ├── user/login/      # User login
│   │   │   ├── admin/login/     # Admin login
│   │   │   ├── totp-setup/      # 2FA setup
│   │   │   └── verify-totp/     # 2FA verification
│   │   ├── user/                # User dashboard
│   │   │   ├── applications/    # App catalog
│   │   │   ├── passkey/         # Passkey management
│   │   │   ├── profile/         # User profile
│   │   │   └── settings/        # User settings
│   │   ├── layout.tsx           # Root layout
│   │   ├── page.tsx             # Home page
│   │   └── globals.css          # Global styles
│   │
│   ├── components/              # Reusable components
│   │   ├── admin/              # Admin components
│   │   │   ├── UserList.tsx    # User table
│   │   │   ├── CreateUserForm.tsx
│   │   │   ├── EditUserForm.tsx
│   │   │   ├── CSVImportForm.tsx
│   │   │   ├── UserGroupList.tsx
│   │   │   └── UserModal.tsx
│   │   ├── user/               # User components
│   │   │   └── passkey.tsx     # Passkey utilities
│   │   ├── ui/                 # UI primitives
│   │   │   ├── button.tsx
│   │   │   ├── input.tsx
│   │   │   ├── sidebar.tsx
│   │   │   └── ...
│   │   ├── NavbarAdmin.tsx
│   │   ├── NavbarUser.tsx
│   │   ├── SideNavBarAdmin.tsx
│   │   └── PrivateRoute.tsx    # Route protection
│   │
│   ├── context/                # React Context
│   │   └── AuthContext.tsx     # Auth state management
│   │
│   ├── hooks/                  # Custom hooks
│   │   ├── use-mobile.tsx      # Mobile detection
│   │   └── use-hydration.tsx   # SSR hydration
│   │
│   ├── lib/                    # Utilities
│   │   ├── apiFetch.ts         # API client
│   │   ├── utils.ts            # Helper functions
│   │   └── date-utils.ts       # Date formatting
│   │
│   ├── types/                  # TypeScript types
│   │   ├── admin.types.ts
│   │   └── user.types.ts
│   │
│   └── middleware.ts           # Next.js middleware
│
├── public/                     # Static assets
├── package.json               # Dependencies
├── tsconfig.json             # TypeScript config
├── tailwind.config.ts        # Tailwind config
├── next.config.ts            # Next.js config
└── README.md                 # Documentation

🔌 API Integration

API Request Flow

sequenceDiagram
    participant C as Component
    participant A as apiFetch
    participant L as localStorage
    participant B as Backend API
    
    C->>A: Request data/action
    A->>L: Get authToken
    L-->>A: Return token
    A->>A: Add Authorization header
    A->>B: HTTP Request
    B->>B: Validate & Process
    B-->>A: JSON Response
    A->>A: Parse & validate
    A-->>C: Return data/error
    C->>C: Update UI state

Core API Endpoints

Authentication Endpoints

Method	Endpoint	Description
`POST`	`/api/auth/user/login`	User authentication
`POST`	`/api/auth/admin/login`	Admin authentication
`POST`	`/api/auth/google/login`	Google OAuth login
`POST`	`/api/user/totp/setup`	Initialize TOTP setup
`POST`	`/api/user/totp/verify-setup`	Verify TOTP setup
`POST`	`/api/auth/user/login/totp`	Login with TOTP
`POST`	`/api/passkey/register/generate-options`	Generate passkey registration options
`POST`	`/api/passkey/register/verify`	Verify passkey registration
`POST`	`/api/passkey/authenticate/generate-options`	Generate passkey auth options
`POST`	`/api/passkey/authenticate/verify`	Verify passkey authentication

Admin Management Endpoints

Method	Endpoint	Description
`GET`	`/api/user`	List all users
`POST`	`/api/user`	Create new user
`GET`	`/api/user/{id}`	Get user details
`PUT`	`/api/user/{id}`	Update user
`DELETE`	`/api/user/{id}`	Delete user
`POST`	`/api/user/{id}/reset-password`	Reset user password
`GET`	`/api/user-group`	List all user groups
`POST`	`/api/user-group`	Create user group
`GET`	`/api/user-group/{id}`	Get group details
`POST`	`/api/user-group/{id}/members`	Add group members
`DELETE`	`/api/user-group/{id}/members/{userId}`	Remove group member
`GET`	`/api/device`	List all devices
`GET`	`/api/device/{id}/logs`	Get device logs

User Endpoints

Method	Endpoint	Description
`GET`	`/api/user/profile`	Get current user profile
`PUT`	`/api/user/profile`	Update user profile
`GET`	`/api/user/applications`	List available applications
`GET`	`/api/user/passkeys`	Get user's passkeys
`DELETE`	`/api/user/passkeys/{id}`	Delete passkey

apiFetch Utility

The centralized API client (src/lib/apiFetch.ts) provides:

Features:

✅ Automatic JWT token injection from localStorage
✅ Configurable base URL via environment variables
✅ Consistent error handling
✅ Type-safe response handling
✅ Support for all HTTP methods
✅ Header management

Usage Example:

import { apiFetch } from '@/lib/apiFetch';

// GET request
const users = await apiFetch('/user');

// POST request
const newUser = await apiFetch('/user', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify(userData)
});

// PUT request
await apiFetch(`/user/${userId}`, {
  method: 'PUT',
  body: JSON.stringify(updates)
});

// DELETE request
await apiFetch(`/user/${userId}`, {
  method: 'DELETE'
});

📦 Installation & Setup

Prerequisites

Node.js 18.0.0 or higher
pnpm (recommended) or npm
Backend API server running (separate repository)

Environment Configuration

Create a .env.local file in the project root:

# Backend API Configuration (Required)
NEXT_PUBLIC_API_BASE_URL=http://localhost:5000

# Optional: Application URL
NEXT_PUBLIC_APP_URL=http://localhost:3030

# Optional: OAuth Configuration
GOOGLE_CLIENT_ID=your_google_client_id
GOOGLE_CLIENT_SECRET=your_google_client_secret

For production, create .env.production:

NEXT_PUBLIC_API_BASE_URL=https://api.yourdomain.com
NEXT_PUBLIC_APP_URL=https://yourdomain.com

Installation Steps

# Clone the repository
git clone https://github.com/letsbld/dlp-frontend.git
cd dlp-frontend

# Install dependencies
pnpm install

# Start development server
pnpm dev

# The application will start at http://localhost:3030

Development Commands

# Development
pnpm dev              # Start dev server with Turbopack on port 3030

# Production
pnpm build            # Build for production
pnpm start            # Start production server

# Code Quality
pnpm lint             # Run ESLint

# Type Checking
npx tsc --noEmit      # Check TypeScript types

Port Configuration

The application runs on port 3030 by default. To change this:

Option 1: package.json

{
  "scripts": {
    "dev": "next dev --turbopack --port 3000",
    "start": "next start --port 3000"
  }
}

Option 2: Command line

pnpm dev -- --port 3000

🔒 Security Features

Authentication Flows

1️⃣ Standard Login Flow

sequenceDiagram
    participant U as User
    participant F as Frontend
    participant B as Backend
    participant DB as Database
    
    U->>F: Enter credentials
    F->>B: POST /auth/user/login
    B->>DB: Validate credentials
    
    alt TOTP Enabled
        DB-->>B: User has TOTP
        B-->>F: Redirect to TOTP verification
        F->>U: Show TOTP input
        U->>F: Enter TOTP code
        F->>B: POST /auth/user/login/totp
        B->>B: Verify TOTP
    else TOTP Setup Required
        DB-->>B: TOTP required but not set
        B-->>F: Redirect to TOTP setup
        F->>U: Show QR code
        U->>F: Scan & verify
    else No TOTP
        DB-->>B: No TOTP required
    end
    
    B-->>F: JWT token + user data
    F->>F: Store in localStorage
    F->>U: Redirect to dashboard

2️⃣ Passkey Authentication Flow

sequenceDiagram
    participant U as User
    participant F as Frontend
    participant B as Backend
    participant A as Authenticator
    
    U->>F: Click "Login with Passkey"
    F->>B: POST /passkey/authenticate/generate-options
    B-->>F: Challenge + options
    F->>A: navigator.credentials.get()
    A->>U: Biometric/PIN prompt
    U->>A: Authenticate
    A-->>F: Assertion
    F->>B: POST /passkey/authenticate/verify
    B->>B: Verify assertion
    B-->>F: JWT token + user data
    F->>U: Redirect to dashboard

3️⃣ TOTP Setup Flow

sequenceDiagram
    participant U as User
    participant F as Frontend
    participant B as Backend
    participant A as Authenticator App
    
    U->>F: Login (first time)
    F->>B: POST /user/totp/setup
    B-->>F: QR code + secret
    F->>U: Display QR code
    U->>A: Scan QR code
    A->>U: Generate 6-digit code
    U->>F: Enter code
    F->>B: POST /user/totp/verify-setup
    B->>B: Validate code
    B-->>F: Success
    F->>U: TOTP enabled, redirect to login

Security Best Practices

✅ Token Management

JWT tokens stored in localStorage
Automatic token expiration checking
Token validation on page load
Secure token transmission

✅ Route Protection

PrivateRoute component for role-based access
Automatic redirection for unauthorized access
Client-side and middleware protection

✅ Input Validation

Client-side validation before submission
Type-safe forms with TypeScript
Sanitized user inputs

✅ API Security

Authorization header on all requests
CORS configuration
Rate limiting (backend)
SQL injection prevention (backend)

🚀 Deployment

Vercel (Recommended)

Connect Repository
- Import your GitHub repository to Vercel
- Select the dlp-frontend project

Configure Environment Variables

NEXT_PUBLIC_API_BASE_URL=https://your-api-domain.com

Deploy
- Vercel will automatically build and deploy
- Subsequent pushes to main branch auto-deploy

Docker Deployment

Dockerfile:

# Stage 1: Build
FROM node:18-alpine AS builder
WORKDIR /app

# Install dependencies
COPY package.json pnpm-lock.yaml ./
RUN npm install -g pnpm && pnpm install --frozen-lockfile

# Build application
COPY . .
RUN pnpm build

# Stage 2: Production
FROM node:18-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Copy built files
COPY --from=builder /app/next.config.ts ./
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static

EXPOSE 3030

CMD ["node", "server.js"]

Build & Run:

# Build image
docker build -t dlp-frontend:latest .

# Run container
docker run -p 3030:3030 \
  -e NEXT_PUBLIC_API_BASE_URL=https://api.yourdomain.com \
  dlp-frontend:latest

Docker Compose:

version: '3.8'

services:
  frontend:
    build: .
    ports:
      - "3030:3030"
    environment:
      - NEXT_PUBLIC_API_BASE_URL=http://backend:5000
    depends_on:
      - backend
    restart: unless-stopped

  backend:
    image: dlp-backend:latest
    ports:
      - "5000:5000"
    environment:
      - DATABASE_URL=postgresql://user:pass@db:5432/dlp
    restart: unless-stopped

Manual Deployment (VPS/Server)

# On your server
git clone https://github.com/letsbld/dlp-frontend.git
cd dlp-frontend

# Install dependencies
pnpm install

# Build
pnpm build

# Use PM2 for process management
npm install -g pm2
pm2 start npm --name "dlp-frontend" -- start
pm2 save
pm2 startup

# Setup Nginx reverse proxy
sudo nano /etc/nginx/sites-available/dlp-frontend

Nginx Configuration:

server {
    listen 80;
    server_name yourdomain.com;

    location / {
        proxy_pass http://localhost:3030;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

🔄 Recent Improvements & Enhancements

⚡ Performance Optimizations

Parallel Data Fetching

Admin Dashboard: All statistics fetched simultaneously using Promise.all
Reduced Load Time: 3x faster dashboard loading
Better User Experience: Immediate visual feedback with loading states

// Before: Sequential (slow)
const users = await apiFetch('/user/');
const devices = await apiFetch('/device');
const groups = await apiFetch('/user-group');

// After: Parallel (fast)
const [users, devices, groups] = await Promise.all([
  apiFetch('/user/'),
  apiFetch('/device'),
  apiFetch('/user-group')
]);

Component Optimization

Lazy loading for heavy components
Memoization of expensive computations
Efficient re-render prevention
Optimized image loading with Next.js Image

🎨 User Experience Enhancements

Visual Feedback

Loading Indicators: Beautiful Commet loader for all async operations
Toast Notifications: Instant feedback for user actions
Error States: User-friendly error messages
Empty States: Helpful guidance when no data exists

Responsive Design

Mobile-first approach with Tailwind CSS
Adaptive layouts for all screen sizes
Touch-friendly interfaces
Collapsible sidebars for mobile

Search & Filter

Real-time Application Search: Instant results as you type
Smart Filtering: Case-insensitive search
Visual Search Indicator: Clear search icon
No Results State: Helpful empty state

🔐 Security Improvements

Enhanced Authentication

Multiple Auth Methods: Username/Password, TOTP, Passkeys, OAuth
Session Management: Automatic token expiration and refresh
Secure Storage: Encrypted localStorage with validation

Input Validation

Client-side validation before API calls
TypeScript type checking
Sanitized inputs to prevent XSS
CSRF protection

Passkey Support

Modern passwordless authentication
Biometric authentication support
Device-bound credentials
Platform authenticator support

🏗️ Code Quality Improvements

TypeScript Integration

Full Type Safety: All components and functions typed
Interface Definitions: Clear contracts for data structures
Type Inference: Reduced boilerplate with smart inference
Strict Mode: Catch errors early in development

Component Architecture

Reusable Components: DRY principle throughout codebase
Consistent Styling: Unified design system with Tailwind
Props Interfaces: Clear component APIs
Separation of Concerns: Logic separated from presentation

Error Handling

Try-catch blocks for all async operations
Graceful degradation on failures
User-friendly error messages
Error boundaries for component crashes

Code Organization

✅ Clear folder structure
✅ Modular components
✅ Centralized utilities
✅ Consistent naming conventions
✅ Comprehensive documentation

📱 New Features Added

Application Dashboard

Visual application catalog with logos
Favorites system with persistent state
Real-time search functionality
Responsive grid layout
Tab-based navigation (All/Favorites)

Passkey Management

Register new passkeys
View all registered passkeys
Delete passkeys with confirmation
Display credential details
Last usage tracking

User Group Management

Create and manage user groups
Add/remove group members
Navigate to group details
View member lists
Group-based policies

CSV Import/Export

Bulk user import from CSV
Template download
Validation and error reporting
Progress tracking
Export functionality

🧪 Testing

Component Testing

# Run tests (when configured)
pnpm test

# Run tests in watch mode
pnpm test:watch

# Generate coverage report
pnpm test:coverage

Manual Testing Checklist

🤝 Contributing

We welcome contributions! Please follow these guidelines:

Development Workflow

Fork the repository

git clone https://github.com/your-username/dlp-frontend.git

Create a feature branch
```
git checkout -b feature/amazing-feature
```
Make your changes
- Follow the existing code style
- Add TypeScript types
- Update documentation
- Test thoroughly

Commit your changes

git commit -m 'Add some amazing feature'

Push to the branch
```
git push origin feature/amazing-feature
```
Open a Pull Request
- Describe your changes
- Link related issues
- Request review

Code Style Guidelines

Use TypeScript for all new code
Follow existing naming conventions
Use functional components with hooks
Keep components small and focused
Add comments for complex logic
Use Tailwind CSS for styling
Ensure responsive design

Commit Message Format

type(scope): subject

body

footer

Types: feat, fix, docs, style, refactor, test, chore

Example:

feat(auth): add passkey authentication

- Implement WebAuthn registration flow
- Add passkey management UI
- Update authentication context

Closes #123

📄 License

🆘 Support & Contact

Getting Help

📧 Email: support@yourdomain.com
💬 Discord: Join our community
📖 Documentation: Full docs
🐛 Bug Reports: GitHub Issues

FAQ

How do I reset my password?

Contact your administrator or use the "Forgot Password" link on the login page.

Can I use multiple passkeys?

Yes! You can register multiple passkeys for backup and convenience.

What browsers support passkeys?

Chrome 67+, Firefox 60+, Safari 13+, Edge 18+

How do I enable TOTP?

Your administrator can require TOTP. Once enabled, you'll be guided through setup on your next login.

🙏 Acknowledgments

Next.js Team - Amazing React framework
Vercel - Hosting and deployment platform
Radix UI - Accessible component primitives
Tailwind Labs - Beautiful utility-first CSS
SimpleWebAuthn - WebAuthn implementation
All Contributors - Thank you for your contributions!

📊 Project Stats

Built with ❤️ using Next.js, TypeScript, and modern web technologies

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🛡️ DLP Frontend - Data Loss Prevention Dashboard

🌟 Overview

🚀 Key Features

🔐 Authentication & Security

👨‍💼 Admin Features

Real-time Statistics Dashboard

System Overview

Complete User Lifecycle

Bulk Operations

Advanced Features

Group Operations

Group Navigation

Device Features

👤 User Features

Application Catalog

Search & Filter

Pre-configured Applications

Passkey Features

🛠 Technical Architecture

Frontend Stack

Key Dependencies

Project Structure

🔌 API Integration

API Request Flow

Core API Endpoints

Authentication Endpoints

Admin Management Endpoints

User Endpoints

apiFetch Utility

📦 Installation & Setup

Prerequisites

Environment Configuration

Installation Steps

Development Commands

Port Configuration

🔒 Security Features

Authentication Flows

1️⃣ Standard Login Flow

2️⃣ Passkey Authentication Flow

3️⃣ TOTP Setup Flow

Security Best Practices

🚀 Deployment

Vercel (Recommended)

Docker Deployment

Manual Deployment (VPS/Server)

🔄 Recent Improvements & Enhancements

⚡ Performance Optimizations

Parallel Data Fetching

Component Optimization

🎨 User Experience Enhancements

Visual Feedback

Responsive Design

Search & Filter

🔐 Security Improvements

Enhanced Authentication

Input Validation

Passkey Support

🏗️ Code Quality Improvements

TypeScript Integration

Component Architecture

Error Handling

Code Organization

📱 New Features Added

Application Dashboard

Passkey Management

User Group Management

CSV Import/Export

🧪 Testing

Component Testing

Manual Testing Checklist

🤝 Contributing

Development Workflow

Code Style Guidelines

Commit Message Format

📄 License

🆘 Support & Contact