this derivation will be built:
  /nix/store/4m8b4y43dchi3n71hp33hwrs9r2hnb8w-nix-shell.drv
this path will be fetched (2.2 MiB download, 5.9 MiB unpacked):
  /nix/store/nvydswi7ickfaim3l29afrm2238fjzlv-just-1.58.0