these 3 derivations will be built:
  /nix/store/6yjd5rpb762wiz8d893j9sd6pw210dzw-source.drv
  /nix/store/vdr04gd66gqpm1akb8gcw37q2cv0p31w-spec-kit-1.3.1.drv
  /nix/store/wp8hvnw1ivchysg9x4ngyjjmwxgigwqk-check-spec-kit.drv