This, and it's a really smart decision for both, VW has been struggling on the software side, and Rivian is already offering custom software solutions to fleet buyers of their step vans, so now their software people get more work, and Rivian gets more money.
If VW did go with Rivian’s software, I’m curious to see who would cave on things like CarPlay / Android Auto. VW wants that, but Rivian has been a hard no.