Maestro is a simple but powerful durable workflow library.

Lightweight library to simplify JDBC database access

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Open Source Routing Engine for OpenStreetMap

Lightweight Multiplatform logging framework for Kotlin. A convenient and performant logging facade.

Forget your curl today! Make HTTP requests from Vim without wrestling the command line!

General data-binding package for Jackson (2.x): works on streaming API (core) implementation(s)

A feature-rich command-line audio/video downloader

This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.

Kotlin-Elasticsearch-Kafka

An open-source, self-hosted note-taking service. Your thoughts, your data, your control — no tracking, no ads, no subscription fees.

🚆 Retrofit call adapters for modeling network responses using Kotlin Result, Jetpack Paging3, and Arrow Either.

OpenAI Api Client in Java

Testing tools for javac and annotation processors

Sample application demonstrating an order fulfillment system decomposed into multiple independant components (e.g. microservices). Showing concrete implementation alternatives using e.g. Java, Spri…

A very fast, powerful, extensible and asynchronous Neovim HTTP client written in Lua.

Demo saga pattern, outbox pattern using Spring Boot, Debezium, Kafka, Kafka Connect

Keycloak - Identity and Access Management for Modern Applications, 2nd Edition

Reliable eventual consistency for Microservices

Data Oriented Programming Examples

A library for testing Kotlin and Java annotation processors, compiler plugins and code generation

Streaming Synthetic Sales Data Generator: Streaming sales data generator for Apache Kafka, written in Python

Microservices, Sagas, Choreography, Eventuate Tram, Micronaut

Foundational libraries for Kotlin

The simplest way to install and launch JDTLS

Source code for the 'Taming Thymeleaf' book