React, Flux, GraphQL, Hack, HHVM...? All of this and more!
The headless CMS market is exploding, and there are some interesting open source alternatives like Directus and soon GraphCMS. Contentful is in the lead for proprietary options, but there is room for open source. Another new option is GraphQL enabled Gentics Mesh.
Keystone.js is a contemporary alternative to simple content management needs. The tool is written in JavaScript and runs on the Node.js platform. You can think of it as a more contemporary version of WordPress. In it's latest 4.0 version the tool gets a React powered UI.
Headless CMS is a concept that has been a topic that has been in the limelight for some years now. Essentially this means that a content management system will simply provide a feed of content that is then consumed by clients written JavaScript or other languages.
The Node.js server side environment for running JavaScript has taken the web development world by storm. It is used by millions of developers for creating web applications. The most common use for web development is still publishing information, using a WCMS (Web Content Management System).
Graph Databases are becoming more common place in social media, dta processing, content management and other applications developed by millions of people around the world. There are query languages like Cypher for Neo4j, etc. But who does Graphs better than Facebook? Arguably no-body. This is why GraphQL, now Open Sourced by Facebook could be the SQL of Knowledge.