Rajkumar is a Java architect with ten years of experience building production systems in Java and Spring Boot, and has worked across PHP, Angular and AWS. He wrote *Spring AI: A Plain-English Guide for Java Developers* the way he learns: by building the thing, running it, and writing down what actually happened, including the parts that failed. Every project in the book runs on a free local model, so any developer canfollow it without a credit card. The code is public at

https://github.com/raj-ansh/spring-ai-examples