these 3 derivations will be built:
  /nix/store/4nlns0i2qg7fs2wipqvr35vmk6n3s7jz-docs-site-main-site.conf.drv
  /nix/store/spm2wmr7z46x11m1saz881zaibhmpr11-docs-site-main-nginx.conf.drv
  /nix/store/izyg95v344z1rg2d42k96qc3kiv76gm0-docs-backend-test.drv