Well, it appears that Neato/Vorwerk robots are not supported - at least they're not listed on https://valetudo.cloud/pages/general/supported-robots.html
> Please note that this list is exhaustive. These are the supported robots. Robots not on this list are not supported by Valetudo. If your robot is not on this list, it is not supported.
From what i gathered so far, Valetudo is actually no custom firmware but modified vendor firmware? So, not sure if anyone related to the project has any interest and capability to reverse that...
When I looked into it, it seemed like a community that loved freeing robots but was absolutely not willing to buy robots that the developers did not have access to. This seems like a fair stance and I think they will start receiving dead vacuums soon. Hopefully Neato's security is as bad as their business side.