these 4 derivations will be built:
  /nix/store/86mg09scjhdmimi1fds5aixjj4in4p4m-etc-nix-registry.json.drv
  /nix/store/bx3fdwsr5ykqwc0yra6my9p0iawpqq4k-etc.drv
  /nix/store/a659pl6kijb2xn8kzvmg4hg91b3v9b09-activate.drv
  /nix/store/9ngl858fhif5c9jkmyfjngvf2bn7sx4v-nixos-system-tau-26.11.20260927.a98e471.drv