this derivation will be built:
  /nix/store/ba5rc5cd2fssgpib7fr8dfy5vhyd6lf0-nix-shell.drv
this path will be fetched (2.2 MiB download, 5.9 MiB unpacked):
  /nix/store/1sf33724ai5nydnck9ndwrd785faarsy-just-1.58.0