these 3 derivations will be built:
  /nix/store/m2pqfcsi11z33n5b5cdym1ryljxs4gax-docs-site-main-site.conf.drv
  /nix/store/fa6fqd14m18q8yqliqpcg0sixmn2575x-docs-site-main-nginx.conf.drv
  /nix/store/lnlx9rsfi87l6556x1miji18a797iiki-docs-backend-test.drv