these 2 derivations will be built:
  /nix/store/b6qgj075pf4999qdsvlm6j6r2g88k4vl-spec-kit-1.0.12.drv
  /nix/store/gw4n41qannnf2cg2csxcvz4xx2nxj5nc-check-spec-kit.drv