these 2 derivations will be built:
  /nix/store/cqrp8mf00r8974gx2ws3wf04zi8kh3h4-vorbis-tools-1.4.2.drv
  /nix/store/zd9cw2f3ik95x6pwn6qiqgmdrh70pkln-uade-3.02.drv