Flecs - Multi-threaded Entity Component System written for C89 & C99
Observable - Interactive code examples/posts
EnTT - Header-only C++ game development library with innovative ECS (Entity-Component-System).
nbviewer.org - Rackspace server host Jupyter Notebooks from your github repo
EntityX - Fast, type-safe C++ ECS (Entity-Component System).
Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.