these 4 derivations will be built:
  /nix/store/swh9z3yalppni0zc1ndj28ags54s6aal-etc-nix-registry.json.drv
  /nix/store/d8wx03xls8ajpa63zn1ja0xkz7xm0k6v-etc.drv
  /nix/store/ns7g6fjj0d7s9fzwayw5k9hs876vhx10-activate.drv
  /nix/store/mr0ly46fbif8wdl7bg6vd58fc9a6878s-nixos-system-tau-26.11.20260927.a98e471.drv