What does this actually do? I can't tell from the readme.

[ElegantScripting]

Sure, it works on Promises, and is similar to GraphQL's Relay. Yes, you've listed the tech specs.

But what does this actually do? I can't tell from the readme.

Thanks.

[RickWong]

Transmit provides a Higher-Order Component (HOC) for React apps to compose and resolve data with Promises. By using Promises it can resolve all the data (even the ones deeper in the React tree) before rendering the root component. This feature makes serverside rendering easy.