this derivation will be built:
  /nix/store/sglf8vwr9xd8073x1nq3qzyk33nid0mk-nix-shell.drv
this path will be fetched (2.3 MiB download, 6.0 MiB unpacked):
  /nix/store/vzs14hc7daw3q253j5vl1lbazxcx2n7p-just-1.59.0