I am interested in setting up my installation of Guix with root-on-tmpfs-style

"impermanence," so I was happy to see that these patches were merged.

Unfortunately, I cannot seem to make it work. My approach was to use a main

partition mounted at `/persistent` with directories underneath like

`/persistent/var/{log,lib,guix}` that were bind-mounted on top of the tmpfs at

`/`.

Not mentioned as far as I can see in this thread is what about `/gnu/store`.

Should that also be stored persistently or does it originate from inside

`/var/guix`? Originally I tried having `/gnu` be the persistent filesystem with

subdirectories `/gnu/persistent/var/...` and `/gnu/store`, but this interfered

with the `%immutable-store bind mount`.

Would you be so kind as to share a working configuration snippet using

root-on-tmpfs? (I understand if you're using btrfs subvolumes; it would still be

useful to me I think to see the configuration.)

Thanks,

Scott