Guix Network Router?

[Peter Polidoro]

Does anyone have any examples of using Guix System as a network 
router?

I am hoping to replace some Ubuntu server routers with Guix.
I found this post:

https://timmydouglas.com/2021/02/07/guix-router.html

I would prefer, though, not to need custom packages or channels, 
if possible.

Thanks!