these 3 derivations will be built:
  /nix/store/hfr7f9nkb2abhqzz5v5n3gfdsyxnrx5z-source.drv
  /nix/store/axgkccrw665nv99pyi15mkrna2j33y0w-spec-kit-1.2.5.drv
  /nix/store/ykfgm97g1rc7459fp7v4k7f712aicyvf-check-spec-kit.drv