this derivation will be built:
  /nix/store/16zy3722bivhn09hlkn4pvs3c6siqr59-nix-shell.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/khqr54sd8clxc0vajs172620w34f7zf8-clan-cli