{
  lib,
  stdenv,
  fetchFromGitHub,
  nodejs_22,
  pnpm,
  python3,
  gcc,
  gnumake,
  pkg-config,
  makeWrapper,
  electron_40,
  vpkmerge,
  sqlite,
  callPackage,
  makeDesktopItem,
  copyDesktopItems,
}: let
  sources = callPackage ../../../../_sources/generated.nix {};

  src = sources.grimoire.src;
  version = src.rev;

  # This would go into nvfetcher but it isnt versioned..
  grimoire-social-src = fetchFromGitHub {
    owner = "Slush97";
    repo = "grimoire-social";
    rev = "main";
    hash = "sha256-f+wUZOR7dqigxd/IZtay1BrLS5rcSnaDage3NXxqsPE=";
  };

  pnpmDeps = pnpm.fetchDeps {
    pname = "grimoire";
    inherit version src;
    fetcherVersion = 3;
    hash = "sha256-X7KLUag9HPHVit0l/tA3BxQZ2/Cj0A5KiG4Oevx2268=";
  };

  desktopItem = makeDesktopItem {
    name = "grimoire";
    exec = "grimoire %u";
    desktopName = "Grimoire";
    categories = ["Utility"];
    mimeTypes = ["x-scheme-handler/grimoire"];
  };
in
  stdenv.mkDerivation {
    pname = "grimoire";
    inherit version src;

    nativeBuildInputs = [
      nodejs_22
      pnpm
      pnpm.configHook
      python3
      gcc
      gnumake
      pkg-config
      makeWrapper
      electron_40
      copyDesktopItems
    ];

    desktopItems = [desktopItem];

    buildInputs = [
      sqlite
    ];

    inherit pnpmDeps;

    env = {
      GRIMOIRE_SOCIAL_BASE_URL = "https://grimoire-social.slusheliott.workers.dev";
      # electron-builder must not try to fetch an Electron binary over the
      # network; we hand it the Nix one via --config.electronDist below.
      ELECTRON_SKIP_BINARY_DOWNLOAD = "1";
    };

    postPatch = ''
      cp -r ${grimoire-social-src} ../grimoire-social
      chmod -R u+w ../grimoire-social

      mkdir -p resources/vpkmerge
      cp ${vpkmerge}/bin/vpkmerge resources/vpkmerge/vpkmerge-linux-x86_64
      chmod +x resources/vpkmerge/vpkmerge-linux-x86_64
    '';

    buildPhase = ''
      runHook preBuild

      mkdir -p ../grimoire-social/node_modules
      ln -sfn "$(realpath node_modules/zod)" ../grimoire-social/node_modules/zod

      # Rebuild the better-sqlite3 native addon against the Electron ABI. We do
      # this ourselves (and disable electron-builder's own rebuild below) so no
      # network fetch of Electron headers is needed inside the sandbox.
      (
        cd node_modules/better-sqlite3
        HOME="$TMPDIR" node \
          "${nodejs_22}/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" \
          rebuild \
          --nodedir="${electron_40.headers}"
      )

      # Package the app the same way upstream CI does (release.yml):
      # `electron-vite build && electron-builder`. We stop at the unpacked
      # `--dir` output instead of building AppImage/deb installers, then wrap
      # the Nix Electron around the produced app.asar. Building through
      # electron-builder (rather than launching Electron on the raw dist/)
      # makes `app.isPackaged` true, which is what disables the dev-only
      # DevTools auto-open and the dev vpkmerge lookup path.
      export HOME="$TMPDIR"
      pnpm exec electron-vite build
      pnpm exec electron-builder --linux dir \
        --config.npmRebuild=false \
        --config.electronDist=${electron_40.dist} \
        --config.electronVersion=${electron_40.version}

      runHook postBuild
    '';

    installPhase = ''
      runHook preInstall

      mkdir -p $out/lib/grimoire
      # electron-builder emits the packaged app (app.asar, app.asar.unpacked,
      # and extraResources such as vpkmerge) under release/linux-unpacked/resources.
      cp -r release/linux-unpacked/resources $out/lib/grimoire/resources

      # Launch the Nix Electron against the packaged asar. process.resourcesPath
      # resolves to the directory holding app.asar, so the bundled vpkmerge at
      # resources/vpkmerge/ is found at runtime.
      mkdir -p $out/bin
      makeWrapper ${electron_40}/bin/electron $out/bin/grimoire \
        --add-flags "$out/lib/grimoire/resources/app.asar" \
        --set NODE_ENV production

      runHook postInstall
    '';

    meta = {
      description = "Grimoire — Electron-based mod manager";
      platforms = ["x86_64-linux"];
    };
  }