this derivation will be built:
  /nix/store/1hpp4jbmpjcl904m1jv07cyjbi9v1j8k-nix-shell.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/jn5c4yh9l1rrxr1hcnd2gr4zhqa465hw-clan-cli