these 2 derivations will be built:
  /nix/store/2nb27lm1j3lqpvs13awgzvcykjj8qmfg-omo-ai-5.1.21.drv
  /nix/store/79m0a6ps0plnfy3g1304b271m1ydw9zc-check-omo-ai.drv