{
  fio,
  jq,
  lib,
  namespace,
  nodejs,
  npmHooks,
  fetchNpmDeps,
  stdenv,
}:
let
  inherit (lib.trivial) importJSON;
  inherit (lib.${namespace}) mkAllSources selectVariant;

  versionSpec = importJSON ./version.json;
  selected = selectVariant versionSpec null null;
  sources = mkAllSources selected;
  inherit (selected.variables) version;
in
stdenv.mkDerivation (finalAttrs: {
  pname = "cockpit-benchmark";
  inherit version;

  src = sources.src;

  npmDeps = fetchNpmDeps {
    src = "${finalAttrs.src}/benchmark";
    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
  };

  nativeBuildInputs = [
    jq
    nodejs
    npmHooks.npmConfigHook
    npmHooks.npmBuildHook
    npmHooks.npmInstallHook
  ];

  # fio is the runtime benchmark tool invoked by the plugin's backend script.
  passthru.cockpitPath = [ fio ];

  # npmConfigHook expects to run in the directory with package.json
  preConfigure = ''
    cd benchmark
  '';

  # Write version.js before vite build (mirrors what the Makefile does)
  preBuild = ''
    pluginVersion="$(jq -r '.version' ../manifest.json)-$(jq -r '.build_number' ../manifest.json)"
    echo "export const pluginVersion = \"''${pluginVersion}\";" > src/version.js
  '';

  npmBuildScript = "build";

  installPhase = ''
    runHook preInstall

    mkdir -p $out/share/cockpit/benchmark
    cp -r dist/* $out/share/cockpit/benchmark/

    runHook postInstall
  '';

  meta = {
    description = "Cockpit storage benchmark utility using fio";
    homepage = "https://github.com/45Drives/cockpit-benchmark";
    changelog = "https://github.com/45Drives/cockpit-benchmark/releases/tag/v${version}";
    license = lib.licenses.gpl3Plus;
    platforms = lib.platforms.linux;
    maintainers = [ ];
  };
})