ERLANG / Heart Beacon Cycle support for a distributed system of systems: "Erlang is a programming language which has many features more commonly associated with an operating system than with a programming language: concurrent processes, scheduling, memory management, distribution, networking, etc."  Rosetta Code is a programming chrestomathy site. The idea is to present solutions to the same task in as many different languages as possible, to demonstrate how languages are similar and different, and to aid a person with a grounding in one approach to a problem in learning another. Rosetta Code currently has 822 tasks, 188 draft tasks, and is aware of 635 languages, though we do not (and cannot) have solutions to every task in every language. See: Rosetta Code dot org    LINK