# Appendix

Knowledge base for AI, Frontend, Backend, and General Skills.

## Content Overview

### AI Basics
- [Prompt Engineering](/en-us/appendix/prompt-engineering)
- [AI Evolution](/en-us/appendix/ai-evolution)
- [LLM Introduction](/en-us/appendix/llm-intro)
- [VLM Introduction](/en-us/appendix/vlm-intro)
- [AI Image Generation](/en-us/appendix/image-gen-intro)
- [AI Audio Models](/en-us/appendix/audio-intro)
- [Context Engineering](/en-us/appendix/context-engineering)
- [AI Agents](/en-us/appendix/agent-intro)
- [AI Capability Dictionary](/en-us/appendix/ai-capability-dictionary)

### Frontend Development
- [Web Basics (HTML/CSS/JS)](/en-us/appendix/web-basics)
- [Frontend Evolution](/en-us/appendix/frontend-evolution)
- [Frontend Performance](/en-us/appendix/frontend-performance)
- [Canvas 2D](/en-us/appendix/canvas-intro)
- [URL to Browser](/en-us/appendix/url-to-browser)
- [Browser DevTools](/en-us/appendix/browser-devtools)

### Backend Development
- [Backend Evolution](/en-us/appendix/backend-evolution)
- [Backend Languages](/en-us/appendix/backend-languages)
- [Database Principles](/en-us/appendix/database-intro)
- [Cache Design](/en-us/appendix/cache-design)
- [Message Queues](/en-us/appendix/queue-design)
- [Authentication](/en-us/appendix/auth-design)
- [Tracking Design](/en-us/appendix/tracking-design)
- [Operations](/en-us/appendix/operations)

### General Skills
- [API Introduction](/en-us/appendix/api-intro)
- [IDE Introduction](/en-us/appendix/ide-intro)
- [Terminal Introduction](/en-us/appendix/terminal-intro)
- [Git Introduction](/en-us/appendix/git-intro)
- [Computer Networks](/en-us/appendix/computer-networks)
- [Deployment](/en-us/appendix/deployment)