this derivation will be built:
  /nix/store/1hx8sq4h198i5qpn1qbf5g0xgw0zbvcf-nix-shell.drv
this path will be fetched (1.1 MiB download, 5.8 MiB unpacked):
  /nix/store/66fqkqdqwsivl39v3vc80s1749sjdywp-composer-2.10.3