these 3 derivations will be built:
  /nix/store/7s9qggaab3ad66w9g1ri9rwplv2a3dbj-dsh-source.drv
  /nix/store/0kkv399da9wj2zshgcrlzvrw9h5xby8d-dsh-0.2.1-rc.4.drv
  /nix/store/1vrfpp2n4r5wkcqqsiwk7x9lnnj39bcd-check-dsh.drv
these 2 paths will be fetched (1.2 MiB download, 3.0 MiB unpacked):
  /nix/store/qs70fgg2rc1y5xqamba5n8lg2n55xmf5-npm-config-hook
  /nix/store/ncqxqfa0ck8n93gs9apmspxp0xfi9i27-prefetch-npm-deps-0.1.0