these 3 derivations will be built:
  /nix/store/fpnnh95z3kcdkcvwmiah1fzlr5ca178w-claude-code-2.1.307.drv
  /nix/store/qg0b5dc02a4z8c62alj9iqw4kr64v8jv-claudebox.drv
  /nix/store/f221vykiwk7qal6v5adw3v9b2xm1qlww-check-claudebox.drv