Nix kind of expects to be always connected. It is possible though, if you have the same config and use channels at the same revision (or use flakes) nix will k

Nix kind of expects to be always connected. It is possible though, if you have the same config and use channels at the same revision (or use flakes) nix will know all packages it needs. You could fetch them and then either provide that machine as a cache, or use nix copy to copy the packages.