this derivation will be built:
  /nix/store/ns84jlkrkvi6nda1chl79hpififgba5s-nix-shell.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/w2x6bi0kr2c2a9pv9zcdl8k1jaq2inl7-clan-cli