Build Your Own AI

Build Your Own AI is a book written by a developer, for developers — a no-nonsense, practical guide to building real-world AI applications using clean, straightforward TypeScript. If you've been curious about AI development but found most resources either too theoretical or too vague, this book is exactly what you've been waiting for.

Designed for absolute beginners, developers with some existing knowledge, and enthusiasts alike, the book focuses on core concepts and patterns that every developer can actually use. Topics include running LLMs locally, prompt engineering, data extraction and creation, RAG, tool calling, agents, fine-tuning basics, and practical tips and tricks — all backed by working example code you can run and learn from immediately.