>>106483187
>boot an official upstream image without nonguix and during the install make it use the nonguix channel for installation, without downloading a prepared image
Yeah, if your PC can boot with the upstream image, you just need to add the nonguix channel to ~/.config/guix/channels.scm
and run guix pull
. But, I think the upstream guix image uses tmpfs as /, so you'll need a considerable amount of RAM (>8 GB) to do this successfully.