these 3 derivations will be built:
  /nix/store/j9mwka4bqa5vgvzghs26xx8sf17iclsl-source.drv
  /nix/store/xgh94rfzh32gwajmy5jqsnhwx10pnr5v-spec-kit-1.0.12.drv
  /nix/store/ljsky4y98zj06gab5a37bgb4n2l2qnpp-check-spec-kit.drv