these 4 derivations will be built:
  /nix/store/bx3qk3kd0xax60mhyhszvzx66nf1s3ar-etc-nix-registry.json.drv
  /nix/store/x63j8b7xp3dhfxf2h4jv2c43da48jr9c-etc.drv
  /nix/store/y7mc6pwxldl16k4a16y44xyhhp80y9fw-activate.drv
  /nix/store/iyia68jpdx1zs8jg7p0gkmv50zzzxipv-nixos-system-tau-26.11.20260906.faf77a3.drv