these 4 derivations will be built:
  /nix/store/3cp40579cr96qq45scyady88728d26cg-source.drv
  /nix/store/a311k4ckv3vp4slp508kzfcav9wcrh6z-source.drv
  /nix/store/wfh0a4kh0khh6x4ypkbykzjqqad08sl2-claude-code-router-3.0.20-npm-deps.drv
  /nix/store/6dpqizwj3n8ij0hs1f1frap7v5s97w4f-claude-code-router-3.0.20.drv