these 2 derivations will be built:
  /nix/store/7i1d157lkfhb7w8n58fmkpyhzrdcn0kx-omo-ai-5.1.40.drv
  /nix/store/qhxsq11zrpk9qznq75mkd4p9nlr3xw1q-check-omo-ai.drv