I thought this was an April Fool but it’s part of an SNCF▸ initiative announced on 22March. So unbelievably perhaps it is true!
There's stuff from earlier than that too. Here's
one in English, from Byri.net (who?):
The experiment will begin in 2024. It will involve the development of platforms allowing the passage from rail to road (and vice versa), but also that a shuttle can park there in order to avoid a collision with a another arriving in the opposite direction.
Flexy shuttles are designed and manufactured by the French company Milla. It is an evolution of the Milla Pod, an autonomous vehicle unveiled in 2019. The adaptation to mixed road-rail use involves the companies Michelin and Railenium.
So it may be a silly idea, at least in the practical sense. More of a conecpt, perhaps. What's in it for SNCF? A way to use the little branch line they want to shut, that does not involve running any trains? If so, why do they keep the rails?