It's taking the concept of TodoMVC, and extending it further.
See how the exact same Medium.com clone (called Conduit) is built using any of our supported frontends and backends. Yes, you can mix and match them, because they all adhere to the same API spec.
Choose any frontend (React, Angular 2, & more) and any backend (Node, Django, & more) and see how they power a real world, beautifully designed fullstack app called "Conduit".
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It's taking the concept of TodoMVC, and extending it further.