this derivation will be built:
  /nix/store/1ckhsirya8s8h2qblda0imfn928xgmlc-nix-shell.drv
this path will be fetched (2.0 MiB download, 5.0 MiB unpacked):
  /nix/store/q8iw11cad522s3dskzwwcnmr43rndqhq-just-1.59.0