Earlier quoted context omitted.
Sounds intriguing, but I'm also a little confused about the flow of "code that generates sketch files"... what is the purpose of Sketch in all this? I would think programs like Sketch are useful in general because they give designers a nice way to design things without adding the extra layers of abstraction that code brings (i.e. they can just draw things with a mouse instead of writing instructions that tell the com…
i assume they want to have only one "place of truth" which should be code. The designers can generate the skethfile of components and then use them in their layouts (eg usecase core components) also it opens up things like "using real (suboptimal) data" or cross-project-wide refactoring of design, etc
So there would be one sketch file for the basic components that is generated from the React code, but the designers who design specific pages of the site (for example) would still design in sketch, but pull from the components of the one "read-only" (react-generated) sketch files. Very cool!