Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Spring Framework

A curated list of awesome Android UI/UX libraries

Awesome Docker Compose samples

Flight rules for git

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Unified developer tools for JavaScript, TypeScript, and the web

Declarative Continuous Deployment for Kubernetes

Sample cloud-first application with 10 microservices showcasing Kubernetes, Istio, and gRPC.

Documentation about css-modules

🍞📝 Markdown WYSIWYG Editor. GFM Standard + Chart & UML Extensible.

Android Transition animations explanation with examples.

Your guide to the (sometimes overwhelming!) React ecosystem.

Frontend Workshop from HTML/CSS/JS to TypeScript/React/Redux

fast HTTP/1.1 benchmarking tool written in Node.js

This is the new home of the original DDD Sample app (previously hosted at sf.net)..

Spring Authorization Server

tbls is a CI-Friendly tool to document a database, written in Go.

Kubernetes deployment strategies explained

A browser developer tool extension to inspect performance of React components.

はてな研修用教科書

Cookpad's coding style guides

An HTML linter for all markup developers.

architecture sample using : Spring Boot gradle, Spring MVC, Thymeleaf, and MyBatis

Python library for using AWS Cognito. With support for SRP.

A local proxy written in Java

This is fully Kubernetes-native testbed environment. Please contribute for add additional OSS (Vitess, NATS, etc) or microservices.

Java 100本ノック