these 2 derivations will be built:
  /nix/store/1a1y3phangjz08v6yvc7xi3g6vka86b0-claude-code-router-3.1.1.drv
  /nix/store/265gnjjkc21w07w8bg111bgd5rl2w9y4-check-claude-code-router.drv