these 2 derivations will be built:
  /nix/store/jrlazwl2hih8bzsfr5332fdl40wr9c7h-claude-code-router-3.1.3.drv
  /nix/store/nf5z9kk20y969w7mbxhsnwb1215sv5l2-check-claude-code-router.drv