these 3 derivations will be built:
  /nix/store/k52f7lhw38gkscc363lqfkjn7w75xp31-etc.drv
  /nix/store/zh5sindnh4jmavsigvi1nirhr7bp3w87-activate.drv
  /nix/store/zwbq7y7g7bdd7gz9vzkxdvra2m3p6418-nixos-system-tau-26.05.20260704.a50de1b.drv