The scope of ambition for this project is breathtaking. Best of luck to them!
The scope of this project was ambitious when it was launched, eighteen years ago. Today, it's abundantly clear that it was too ambitious (and/or the project was poorly managed); they still don't have anything usable, whereas other projects like Tor and I2P have produced usable tools in much less time.
Hurd is an abject, embarrassing failure. Individual developers have produced more stable, complete operating systems as a joke (like PonyOS) than the entire GNU project has managed in 29 years.
https://gnunet.org/en/architecture.html
My uncharitable guess would be that most of it is completely unusable outside the context of this project.