this derivation will be built:
  /nix/store/nnw1p4xnmdc70q54zm1ddk34dnagr80j-fastly-purge-lint-0.0.1.drv
these 2 paths will be fetched (1.0 MiB download, 5.6 MiB unpacked):
  /nix/store/ws580pp4k2yq3xz5jjbs1pmigkffg50v-composer-2.10.3
  /nix/store/65as7wr3hd0n5i8vz4h7r9jhl5pam8hb-composer-install-hook.sh