All-in-one technical notes & code snippets — A centralized knowledge base covering design patterns, algorithms, data structures, AWS, and more. Perfect for learning, quick reference, and daily developer use.

📄 This README is also available in other languages:

• 🇻🇳 Tiếng Việt

Tech Notes Hub is a curated collection of technical notes and code snippets aimed at helping developers deepen their understanding and speed up coding tasks. This repository covers a wide range of topics including:

• Design Patterns
• Algorithms & Data Structures
• Cloud & AWS Services
• Software Architecture
• System Design
• Best Practices & Tips

and many more.

It's designed to be your go-to resource whether you're preparing for interviews, building projects, or learning new concepts.

• Well-organized notes and examples
• Clear and concise explanations
• Language-agnostic concepts with code snippets in popular languages
• Regularly updated content
• Easy to browse and search

• Design Patterns: Singleton, Factory, Observer, Strategy, etc.
• Algorithms: Sorting, Searching, Graphs, Dynamic Programming
• Data Structures: Arrays, Linked Lists, Trees, Graphs, Hash Tables
• AWS: EC2, S3, Lambda, CloudFormation, IAM, and more
• System Design: Scalability, Caching, Load Balancing
• Miscellaneous: DevOps, CI/CD, Security tips, etc.

• Centralized knowledge saves time searching multiple resources
• Clear code snippets make concepts easy to understand and apply
• Great for interview prep and daily coding challenges
• Open source and community-driven — contributions welcome!

Simply browse the folders or use GitHub's search feature to find the topic or pattern you need. Each note is designed to be self-contained with theory and practical code.

For a complete table of contents with all available notes and resources, check out the SUMMARY.md file.

This repository includes Docker configurations for running code snippets in various programming languages. To run a code snippet:

./docker/run-snippet.sh snippets/path/to/your/snippet.py

For more information on Docker usage, see the Docker README.

This repository contains utility scripts in the /tools directory to help maintain the documentation.

The update-frontmatter.js script automatically updates metadata in Markdown files:

# First, install Node.js dependencies
npm install

# Run the script (updates all Markdown files)
node tools/update-frontmatter.js

# Update a specific file
node tools/update-frontmatter.js algorithms/sorting-algorithms.md

The generate_summary.py script automatically creates the SUMMARY.md file:

# Run the script to generate a new table of contents
python tools/generate_summary.py

For more information about available tools, see the Tools README.

Contributions are highly welcome! If you want to:

• Add new notes or code snippets
• Improve existing explanations or examples
• Report issues or suggest new topics

Please follow the guidelines in the CONTRIBUTING.md file.

Before submitting a pull request, make sure to check the Pull Request Rules to see what's allowed. ✅

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

For a detailed list of all notable changes to this project, please see the changelog file.

Thanks to all contributors and the open source community for making this knowledge base better every day.

If you have any questions or suggestions, feel free to open an issue or contact the maintainer:

• GitHub: tanthanhdev

Happy coding! 🚀