these 2 derivations will be built:
  /nix/store/n4chqrjab7pnk2a2rj43f1jp0dlxn612-luvus-0.12.0-vendor.drv
  /nix/store/kp04vwqx9f91zxi86jmrq155vhcvbpf2-luvus-0.12.0.drv