System Design Repository

A comprehensive collection of system design concepts and examples using Mermaid diagrams and draw.io, featuring real-world architectures, flowcharts, and sequence diagrams.

📋 Table of Contents

• System Design Repository
  • Overview
  • Technologies
    • 🧩 Mermaid
    • 📐 draw.io
  • Project Structure
  • Architecture Diagrams
    • 🏗️ CI/CD & DevOps
    • 🤖 AI Integration
    • 🛒 E-Commerce Systems
  • Flowcharts
    • 🤖 AI & Automation
    • 🎮 Gaming & Betting Systems
    • 💰 Reward & Token Systems
    • 🔄 Dynamic Loading Patterns
  • Sequence Diagrams
    • 📊 Data Flow Sequences
  • SDLC
    • 🌿 Git Flow
  • Getting Started
    • Viewing Mermaid Diagrams
    • Viewing draw.io Diagrams
    • Quick Links
  • Contributing
  • License

Overview

This repository serves as a practical reference for system design patterns and architectural solutions. It includes various diagram types that illustrate software architectures, data flows, and system interactions across different domains including e-commerce, CI/CD pipelines, gaming systems, and AI applications.

Technologies

🧩 Mermaid

Mermaid is a JavaScript-based diagramming and charting tool that renders Markdown-inspired text definitions to create and modify diagrams dynamically. It supports:

• Flowcharts
• Sequence diagrams
• Class diagrams
• State diagrams
• Entity Relationship diagrams
• Gantt charts
• And more...

📐 draw.io

draw.io (diagrams.net) is a free, open-source diagramming application that allows you to create professional diagrams. Features include:

• Wide variety of diagram types (UML, ER, Network diagrams, etc.)
• Multiple export formats (PNG, JPEG, SVG, PDF)
• Integration with cloud storage services
• Offline and online editing capabilities

Project Structure

system-design/
├── architecture/          # System architecture diagrams
│   ├── ai-integration/   # AI integration and LLM proxy designs
│   ├── jenkins/          # CI/CD pipeline architectures
│   ├── eCommerceWebSite/ # E-commerce system designs
│   └── syncStatusWith3rdParty/ # Third-party integration patterns
├── flowchart/            # Process flow diagrams
│   └── dynamicLoading/   # Frontend component loading patterns
├── sdlc/                 # Software development lifecycle diagrams
│   └── git-flow-in-real-world/ # Git branch promotion and hotfix flows
├── sequenceDiagram/      # Interaction sequence diagrams
└── LICENSE              # MIT License

Architecture Diagrams

🏗️ CI/CD & DevOps

• Jenkins CI/CD Architecture - C4 context diagram showing Jenkins and Git repositories integration
• Sync Status with 3rd Party - Architecture for synchronizing data with external systems

🤖 AI Integration

• Built-in AI on Chrome - Multi-LLM orchestration platform design for XPrompt, including browser extension, backend, response synthesis, and Chrome built-in AI prompt enhancement flows
• LLM Proxy on OpenClaw - OpenClaw sidecar proxy design for LLM credential isolation, quota enforcement, webhook relay, and orchestrator admin APIs. (try use an AI tool, text to diagram : Napkin https://www.napkin.ai/)

🛒 E-Commerce Systems

• E-Commerce Website System Design - Complete system design using C4 Model
  • Available in both Mermaid and draw.io formats
  • Includes context and container diagrams
  • Interactive draw.io viewer

Flowcharts

🤖 AI & Automation

• AI Patent Infringement Check App - Dockerized AI application flow with OpenAI integration
• MCP Server with Playwright - Browser automation server architecture

🎮 Gaming & Betting Systems

• Auto Campaign Events Flow - Automated campaign management system
• Bet Slip States - State management for betting applications
• Shopping Cart States - Frontend component state management

💰 Reward & Token Systems

• Calculate Available Reward Tokens - Token calculation triggers and flow

🔄 Dynamic Loading Patterns

• Dynamic Loading Mechanism - Frontend component lazy loading strategies
  • Left-to-right loading pattern
  • Top-to-bottom loading pattern

Sequence Diagrams

📊 Data Flow Sequences

• Remain Campaign Count Flow - API interaction sequence for campaign counting
• Token States in Bet Placement - Token state management during bet placement

SDLC

🌿 Git Flow

• Git Flow in Real World - Mermaid git graph showing branch promotion from dev to qat, uat, and prod, plus production hotfix sync-back flow

Getting Started

Viewing Mermaid Diagrams

1. GitHub: Mermaid diagrams render automatically in .md files on GitHub
2. Local: Use any Markdown editor with Mermaid support (VS Code with Mermaid extension, Typora, etc.)
3. Online: Use the Mermaid Live Editor

Viewing draw.io Diagrams

1. Online: Open .drawio files directly at app.diagrams.net
2. Offline: Download the draw.io desktop app
3. HTML Preview: Open the provided .html files in any web browser

Quick Links

• 📁 Architecture Diagrams
• 📊 Flowcharts
• 🔄 Sequence Diagrams
• 🌿 SDLC

Contributing

Contributions are welcome! Please feel free to submit a Pull Request. When contributing:

1. Use clear, descriptive names for your diagrams
2. Include a brief description of what the diagram represents
3. Follow the existing folder structure
4. Update relevant README files

License

This project is licensed under the MIT License - see the LICENSE file for details.

---

Created and maintained by Max © 2026