Writing Better Rust: a refactoring workshop

Demo code for JUnit talk at IntelliJ IDEA Conf 2025

Samples showing architectural patterns for Modular RAG using Spring AI and Ollama.

Samples showing how to build Java applications powered by Generative AI and LLMs using Spring AI and Spring Boot.

100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.

Feature-rich, efficient, and highly customizable plugins for your Multiplatform Ktor Server or Client

Demo codebase for our Spring I/O 2025 Barcelona talk

Spring Petklinik is a Kotlin fullstack variant of the original Spring Petclinic

A realworld api example app featuring Arrow, Kotlin and Spring Boot.

Kotlin Clean Architecture and CQRS microservice

Demo for Spring Boot and Spring Cloud microservices with distributed configuration (Spring Cloud Config), service discovery (Eureka), API gateway (Spring Cloud Gateway, Zuul), Swagger/OpenAPI docum…

Java Testing Made Easy YouTube Tutorial Series

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queu…

This repository contains everything you need to become proficient in System Design

Demo applications and code examples for Apache Kafka's Streams API.

Kafka Streaming

Learn Functional Programming in Scala

The repository for the Functional Scala workshop.

Foundation of functional programming course

Scala 3 workshop presenting the top new features of the language.