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diff --git a/archived/projt-launcher/launcher/ui/pages/BasePage.h b/archived/projt-launcher/launcher/ui/pages/BasePage.h
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+++ b/archived/projt-launcher/launcher/ui/pages/BasePage.h
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-3.0-only
+// SPDX-FileCopyrightText: 2026 Project Tick
+// SPDX-FileContributor: Project Tick Team
+/*
+ *  ProjT Launcher - Minecraft Launcher
+ *  Copyright (C) 2026 Project Tick
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, write to the Free Software Foundation,
+ *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * === Upstream License Block (Do Not Modify) ==============================
+ *
+ *
+ *
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, write to the Free Software Foundation,
+ *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ *      Copyright 2013-2021 MultiMC Contributors
+ *
+ *      Licensed under the Apache License, Version 2.0 (the "License");
+ *      you may not use this file except in compliance with the License.
+ *      You may obtain a copy of the License at
+ *
+ *          http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *      Unless required by applicable law or agreed to in writing, software
+ *      distributed under the License is distributed on an "AS IS" BASIS,
+ *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *      See the License for the specific language governing permissions and
+ *      limitations under the License.
+ *
+ * ======================================================================== */
+
+#pragma once
+
+#include <QIcon>
+#include <QString>
+#include <functional>
+#include <memory>
+
+#include "BasePageContainer.h"
+
+class BasePage
+{
+  public:
+	using updateExtraInfoFunc = std::function<void(QString, QString)>;
+	virtual ~BasePage()
+	{}
+	virtual QString id() const			= 0;
+	virtual QString displayName() const = 0;
+	virtual QIcon icon() const			= 0;
+	virtual bool apply()
+	{
+		return true;
+	}
+	virtual bool shouldDisplay() const
+	{
+		return true;
+	}
+	virtual QString helpPage() const
+	{
+		return QString();
+	}
+	void opened()
+	{
+		isOpened = true;
+		openedImpl();
+	}
+	void closed()
+	{
+		isOpened = false;
+		closedImpl();
+	}
+	virtual void openedImpl()
+	{}
+	virtual void closedImpl()
+	{}
+	virtual void setParentContainer(BasePageContainer* container)
+	{
+		m_container = container;
+	};
+	virtual void retranslate()
+	{}
+
+  public:
+	int stackIndex = -1;
+	int listIndex  = -1;
+	updateExtraInfoFunc updateExtraInfo;
+
+  protected:
+	BasePageContainer* m_container = nullptr;
+	bool isOpened				   = false;
+};
+
+using BasePagePtr = std::shared_ptr<BasePage>;