Mattermost - Open source Slack alternative
Awesome Crystal - A curated list of awesome Crystal code and resources.
Crystal Language - Compiled language with Ruby-like syntax
Kemal - Lightning Fast, Super Simple micro web framework written in Crystal programming language.
Consul - Service discovery
Docker Compose - Compose is a tool for defining and running multi-container Docker applications.
Docker Swarm - Docker Swarm is native clustering for Docker. It turns a pool of Docker hosts into a single, virtual Docker host.
Nomad - A Distributed, Highly Available, Datacenter-Aware Scheduler
Sublime - IDE for almost any language. Many plugins available.
Platform IO - Microcontoller toolkit supporting Arduino and Raspberry Pi
PyPy - Python interpreter written in Python. Utilizes JIT for performance increase.
Sanic - Python 3.5 Web Framework utilizing UV-Loop
ngrest - ngrest allow you to deploy C++ RESTful webservices under Apache2, Nginx or under simple ngrest http server.
grpc - Cross-language RPC using Protobuffers
Rust Language - Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety