I have researched this for a while, and followed documentation from the following places:
This issue on github led me to the semantic-ui-react documentation on Augmentation,
and the react-router documentation on setting up route config with sub-routes.
My route configuration seems to work, but it is unclear where to specifically implement the component augmentation.
I have tried <Card.Group items={items} as={Link} to={items.map((item,i)=>(item.href))} />
, as well as trying to put the as={Link}
in the props itself, and have faced a bunch of errors and eventually recursive failure leading to the dreaded Maximum call stack size exceeded!
For now, I am just hard coding the paths to components with react-router. A functional approach would be more elegant, and much more react-y, and this is what I'm after!