these 4 derivations will be built:
  /nix/store/q4j9bv2kjkbhinqclfpsih1k5nsqscyi-etc-nix-registry.json.drv
  /nix/store/0qjq9i9129xdq7kn59kpjz6r9ph6d4jq-etc.drv
  /nix/store/vj0vl3s8d5lyj9p479zdk0rv50vvnnyw-activate.drv
  /nix/store/x9vhawhdjnn7qmddskvwa3fwacjqz5gw-nixos-system-tau-26.11.20260927.a98e471.drv