--- n/duckstation/src/duckstation-qt/qthost.cpp	2026-07-10 08:51:51.000000000 -0000
+++ N/duckstation/src/duckstation-qt/qthost.cpp	2026-07-13 20:10:04.135102447 -0000
@@ -3684,9 +3684,6 @@
   // Set theme before creating any windows.
   UpdateApplicationTheme();
 
-  // Build warning.
-  AutoUpdaterDialog::warnAboutUnofficialBuild();
-
   // Setting/folder migrations.
   ApplyMigrations();
 
--- n/duckstation/src/duckstation-qt/autoupdaterdialog.h	2026-07-10 08:51:51.000000000 -0000
+++ N/duckstation/src/duckstation-qt/autoupdaterdialog.h	2026-07-13 20:14:13.996494440 -0000
@@ -38,7 +38,6 @@
   static QString getTagDisplayName(const std::string_view tag);
   static std::string getCurrentUpdateTag();
   static void cleanupAfterUpdate();
-  static void warnAboutUnofficialBuild();
 
 Q_SIGNALS:
   /// Emitted just before the update check finishes, before any messages are displayed.
--- n/duckstation/src/duckstation-qt/autoupdaterdialog.cpp	2026-07-10 08:51:51.000000000 -0000
+++ N/duckstation/src/duckstation-qt/autoupdaterdialog.cpp	2026-07-13 20:19:44.425931670 -0000
@@ -131,123 +131,6 @@
   HTTPDownloader::CancelRequestsForOwner(this);
 }
 
-void AutoUpdaterDialog::warnAboutUnofficialBuild()
-{
-  //
-  // To those distributing their own builds or packages of DuckStation, and seeing this message:
-  //
-  // DuckStation is licensed under the CC-BY-NC-ND-4.0 license.
-  //
-  // This means that you do NOT have permission to re-distribute your own modified builds of DuckStation.
-  // Modifying DuckStation for personal use is fine, but you cannot distribute builds with your changes.
-  // As per the CC-BY-NC-ND conditions, you can re-distribute the official builds from https://www.duckstation.org/ and
-  // https://github.com/stenzek/duckstation, so long as they are left intact, without modification. I welcome and
-  // appreciate any pull requests made to the official repository at https://github.com/stenzek/duckstation.
-  //
-  // I made the decision to switch to a no-derivatives license because of numerous "forks" that were created purely for
-  // generating money for the person who knocked it off, and always died, leaving the community with multiple builds to
-  // choose from, most of which were out of date and broken, and endless confusion. Other forks copy/pasted upstream
-  // changes without attribution, violating copyright.
-  //
-  // Thanks, and I hope you understand.
-  //
-
-#if !__has_include("scmversion/tag.h") || !UPDATER_RELEASE_IS_OFFICIAL
-  constexpr const char* CONFIG_SECTION = "UI";
-  constexpr const char* CONFIG_KEY = "UnofficialBuildWarningConfirmed";
-  if (
-#if !defined(_WIN32) && !defined(__APPLE__)
-    EmuFolders::AppRoot.starts_with("/home") && // Devbuilds should be in home directory.
-#endif
-    Core::GetBaseBoolSettingValue(CONFIG_SECTION, CONFIG_KEY, false))
-  {
-    return;
-  }
-
-  constexpr int DELAY_SECONDS = 10;
-
-  const QString message =
-    QStringLiteral("<h1>You are not using an official release!</h1><h3>DuckStation is licensed under the terms of "
-                   "CC-BY-NC-ND-4.0, which does not allow modified builds to be distributed.</h3>"
-                   "<p>If you are a developer and using a local build, you can check the box below and continue.</p>"
-                   "<p>Otherwise, you should delete this build and download an official release from "
-                   "<a href=\"https://www.duckstation.org/\">duckstation.org</a>.</p><p>Do you want to exit and "
-                   "open this page now?</p>");
-
-  QMessageBox mbox;
-  mbox.setIcon(QMessageBox::Warning);
-  mbox.setWindowTitle(QStringLiteral("Unofficial Build Warning"));
-  mbox.setWindowIcon(QtHost::GetAppIcon());
-  mbox.setWindowFlag(Qt::CustomizeWindowHint, true);
-  mbox.setWindowFlag(Qt::WindowCloseButtonHint, false);
-  mbox.setTextFormat(Qt::RichText);
-  mbox.setText(message);
-
-  mbox.addButton(QMessageBox::Yes);
-  QPushButton* no = mbox.addButton(QMessageBox::No);
-  const QString orig_no_text = no->text();
-  no->setEnabled(false);
-
-  QCheckBox* cb = new QCheckBox(&mbox);
-  cb->setText(tr("Do not show again"));
-  mbox.setCheckBox(cb);
-
-  int remaining_time = DELAY_SECONDS;
-  no->setText(QStringLiteral("%1 [%2]").arg(orig_no_text).arg(remaining_time));
-
-  QTimer* timer = new QTimer(&mbox);
-  connect(timer, &QTimer::timeout, &mbox, [no, timer, &remaining_time, &orig_no_text]() {
-    remaining_time--;
-    if (remaining_time == 0)
-    {
-      no->setText(orig_no_text);
-      no->setEnabled(true);
-      timer->stop();
-    }
-    else
-    {
-      no->setText(QStringLiteral("%1 [%2]").arg(orig_no_text).arg(remaining_time));
-    }
-  });
-  timer->start(1000);
-
-  class EventFilterObj final : public QObject
-  {
-  public:
-    EventFilterObj(int& remaining_time) : m_remaining_time(remaining_time) {}
-
-    bool eventFilter(QObject* watched, QEvent* event) override
-    {
-      if (event->type() == QEvent::Close && m_remaining_time > 0)
-      {
-        event->ignore();
-        return true;
-      }
-
-      return QObject::eventFilter(watched, event);
-    }
-
-  private:
-    int& m_remaining_time;
-  };
-
-  EventFilterObj event_filter(remaining_time);
-  mbox.installEventFilter(&event_filter);
-  const int res = mbox.exec();
-  mbox.removeEventFilter(&event_filter);
-
-  if (res == QMessageBox::Yes)
-  {
-    QtUtils::OpenURL(nullptr, "https://duckstation.org/");
-    QMetaObject::invokeMethod(qApp, &QApplication::quit, Qt::QueuedConnection);
-    return;
-  }
-
-  if (cb->isChecked())
-    Core::SetBaseBoolSettingValue(CONFIG_SECTION, CONFIG_KEY, true);
-#endif
-}
-
 std::vector<std::pair<QString, QString>> AutoUpdaterDialog::getChannelList()
 {
   std::vector<std::pair<QString, QString>> ret;