these 2 derivations will be built:
  /nix/store/bm7k1hinvh1njc258krcfbvfpiay0bwh-claude-code-router-3.0.18-npm-deps.drv
  /nix/store/9h3lvj6yph5aw1mxjapc4mvfzhcahv8y-claude-code-router-3.0.18.drv