Scratch是麻省理工学院开发的供儿童或者初学者学习编程的开发平台

A lightweight MQTT server

安全思维（脑图收集整理）

MQTT Server/Broker - Scalable Distributed MQTT Message Broker for IoT in the 5G Era

✍ An excellent open source blog publishing application. | 一个优秀的开源博客发布应用。

Apache Isis™ software is a framework for rapidly developing domain-driven apps in Java. Write your business logic in entities, domain services or view models, and the framework dynamically generates a representation of that domain model as a webapp or as a RESTful API. For prototyping or production.