these 2 derivations will be built:
  /nix/store/iyrghmlf6v8xkwz7yl39j4l7491scvhh-claude-code-router-3.1.3.drv
  /nix/store/3wv32jp6yi14fwf4zmk10yhw3k8ix86b-check-claude-code-router.drv