[brabel]

If I understand correctly, they're saying that the low level stuff works the way it works in Nix, not that they use Nix for that.

I am aware Guix did fork Nix but from what I've read, there's almost nothing left in Guix that still uses the initial Nix code?

[jbboehr]

I am extremely out of the loop, but I believe until somewhat recently it still used nix-daemon and the corresponding drv format, but it may have since been rewritten.