{
  lib,
  stdenv,
  buildDotnetModule,
  dotnetCorePackages,
  wrapGAppsHook3,
  copyDesktopItems,
  gdk-pixbuf,
  webkitgtk_4_1,
  gtk3,
  glib,
  libnotify,
  fontconfig,
  gst_all_1,
  zenity,
  makeDesktopItem,
  callPackage,
}:
let
  sources = callPackage ../../../../_sources/generated.nix { };
  src = sources.VRCNext.src;
  # Version from the nvfetcher tag (v2026.40.6); AppInfo.cs may lag the tag.
  version = lib.removePrefix "v" sources.VRCNext.version;
in
buildDotnetModule rec {
  pname = "vrcnext";
  inherit version src;

  projectFile = "VRCNext.csproj";
  nugetDeps = ./deps.json;

  # This csproj picks its TFM via `$(RuntimeIdentifier.StartsWith('linux'))`.
  # `dotnet restore --runtime` does NOT set RuntimeIdentifier during project
  # evaluation (only build/publish do), so pass it as a property or restore
  # targets net9.0-windows and fails with NETSDK1100.
  dotnetRestoreFlags = [
    "-p:RuntimeIdentifier=${dotnetCorePackages.systemToDotnetRid stdenv.hostPlatform.system}"
  ];

  dotnet-sdk = dotnetCorePackages.sdk_9_0;

  executables = [ "VRCNext" ];

  nativeBuildInputs = [
    wrapGAppsHook3
    copyDesktopItems
  ];

  # gdk-pixbuf so wrapGAppsHook3 emits GDK_PIXBUF_MODULE_FILE (GTK file
  # dialogs via libnfd.so need icon loaders).
  buildInputs = [ gdk-pixbuf ];

  # buildDotnetModule already wraps with makeWrapper (dotnetFixupPhase);
  # fold the gapps args in there instead of double-wrapping.
  dontWrapGApps = true;

  # Prebuilt native libs (Photino.Native.so, libnfd.so, libSkiaSharp.so)
  # have no RUNPATH; these get suffixed onto LD_LIBRARY_PATH.
  runtimeDeps = [
    webkitgtk_4_1
    gtk3
    glib
    gdk-pixbuf
    libnotify
    fontconfig
    gst_all_1.gstreamer
    gst_all_1.gst-plugins-base
    gst_all_1.gst-plugins-good
    gst_all_1.gst-libav
  ];

  makeWrapperArgs = [
    # WebKitGTK's web process dies on Wayland with "Error 71 (Protocol
    # error) dispatching to Wayland display" when the DMA-BUF renderer
    # handshake fails (well-known NixOS issue); disable it.
    "--set"
    "WEBKIT_DISABLE_DMABUF_RENDERER"
    "1"
    # WebKitGTK discovers gstreamer plugins via the plugin path, not LD_LIBRARY_PATH.
    "--prefix"
    "GST_PLUGIN_SYSTEM_PATH"
    ":"
    (lib.makeSearchPath "lib/gstreamer-1.0" [
      gst_all_1.gst-plugins-base
      gst_all_1.gst-plugins-good
      gst_all_1.gst-libav
    ])
    # The app shells out to zenity (dialogs) and notify-send (libnotify).
    "--prefix"
    "PATH"
    ":"
    (lib.makeBinPath [
      zenity
      libnotify
    ])
  ];

  preFixup = ''
    makeWrapperArgs+=("''${gappsWrapperArgs[@]}")
  '';

  postInstall = ''
    install -Dm644 "$src/frontend/logo.png" "$out/share/icons/hicolor/512x512/apps/vrcnext.png"
  '';

  desktopItems = [
    (makeDesktopItem {
      name = "vrcnext";
      exec = "VRCNext %u";
      icon = "vrcnext";
      comment = "VRChat companion app";
      desktopName = "VRCNext";
      categories = [
        "Game"
        "Utility"
        "Network"
      ];
      mimeTypes = [ "x-scheme-handler/vrcn" ];
      startupWMClass = "VRCNext";
    })
  ];

  meta = {
    description = "VRChat launcher and management system";
    homepage = "https://github.com/shinyflvre/VRCNext";
    license = {
      fullName = "VRCNext Non-Commercial Open Source License (VNCOL) 1.0";
      shortName = "vncol";
      url = "https://github.com/shinyflvre/VRCNext/blob/master/LICENSE";
      free = false;
    };
    mainProgram = "VRCNext";
    platforms = [ "x86_64-linux" ];
  };
}