these 4 derivations will be built:
  /nix/store/sqqn07xhznh62qmzn3cw8l3fn4b547lx-etc-nix-registry.json.drv
  /nix/store/jnik3vsmxw7gqrinrbf7ka9ca8xsxx49-etc.drv
  /nix/store/kxdlgzbzgn63djvi1hnzgz2dlpp319fv-activate.drv
  /nix/store/lia8mn1vyd91h7404v6sfr04a2w1g5yl-nixos-system-tau-26.11.20260927.a98e471.drv