{ pkgs, self, ... }:
{
  build =
    type: subcomponent: json:
    pkgs.runCommand "hylonix-${subcomponent}-manpage"
      {
        header = ./header.5;
        footer = ./footer.5;
        inherit type subcomponent json;
        revision = self.lastModifiedDate;

        nativeBuildInputs = [
          pkgs.buildPackages.installShellFiles
          pkgs.nixos-render-docs
        ];
        allowedReferences = [ "out" ];
      }
      ''
        substitute "$header" ./header \
          --subst-var subcomponent \
          --subst-var type

        nixos-render-docs -j $NIX_BUILD_CORES options manpage \
          --revision "$revision" \
          --header ./header \
          --footer "$footer" \
          "$json/share/doc/nixos/options.json" \
          "hylonix-$subcomponent.5"
        installManPage hylonix-*.5
      '';
}