this derivation will be built:
  /nix/store/8vxd63gps73g93n10wjr7g2kyzpbxnqk-nixos-anywhere-docs.drv
this path will be fetched (4.4 MiB download, 12.8 MiB unpacked):
  /nix/store/9qi8wczw4as909119bfqggahy4x3ycln-mdbook-0.5.4