these 4 derivations will be built:
  /nix/store/agzrh0fv5kr0zc9kv4csshz33763dh30-system-units.drv
  /nix/store/zbqwzhlq66skb4igqg61a5if5hklydpn-etc.drv
  /nix/store/yf0jm4c1bzaryafj1hvzpwfjab7n6l32-activate.drv
  /nix/store/f191n8y7rzxh2mkj9jakdhp98ifai42i-nixos-system-tau-26.05.20260704.a50de1b.drv