these 3 derivations will be built:
  /nix/store/ppyhcvn8hqzba1zachvfdk0dxiq4qfwj-docs-site-main-site.conf.drv
  /nix/store/pdmzybw7ncqgw6anpilrsfypyhkk8bfa-docs-site-main-nginx.conf.drv
  /nix/store/z3j7h0rjv8fw7acs03ndk6gndg5qiwin-docs-backend-test.drv