these 4 derivations will be built:
  /nix/store/mhvlsrkqdfz272fyg1az7gfxwf88mzna-etc-nix-registry.json.drv
  /nix/store/fj3c6grzwaispwyyrilw2qcs59vz8yx5-etc.drv
  /nix/store/1rydyjrmxqyfqb5753gkdkxxzp03rhk3-activate.drv
  /nix/store/4f1wvb6r9b60d1858ap3yx9wb72p0gyv-nixos-system-tau-26.11.20261018.b5f67df.drv