License

Proprietary License

Copyright © 2025 - 2026 Matsuki (Matsuk1). All Rights Reserved.

This software and associated documentation files (the "Software") are the proprietary and confidential information of Matsuki (Matsuk1).

Restrictions

You are NOT permitted to:

• ❌ Use, copy, modify, merge, publish, distribute, sublicense, or sell copies of the Software
• ❌ Permit persons to whom the Software is furnished to do so

The Software is provided for viewing and reference purposes only.

Prohibited Activities

Unauthorized copying, modification, distribution, or use of this Software, via any medium, is strictly prohibited without the express written permission of the copyright holder.

Disclaimer

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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What This Means

✅ You CAN:

• Use the bot as an end user through LINE
• Read the documentation and learn how to use the features
• Report bugs and suggest features via GitHub Issues
• Share your experience with other users

❌ You CANNOT:

• Copy or fork the source code
• Modify the code for your own use
• Distribute copies of the software
• Create derivative works based on this project
• Use this commercially without permission
• Remove or modify copyright notices

Why Proprietary License?

JiETNG is the result of extensive development work and represents significant intellectual property. The proprietary license ensures:

1. Quality Control: Only the official version is supported
2. Security: Prevents malicious modifications
3. Sustainability: Protects the investment in development
4. User Protection: Ensures all users get the authentic, secure version

Using the Bot Service

While the source code is proprietary, the bot service itself is free to use:

• ✅ Add the bot to your LINE
• ✅ Bind your SEGA account
• ✅ Track your『maimai でらっくす』scores
• ✅ Use all features for free

Get Started →

Contact for Licensing

If you wish to discuss licensing options for commercial use, integration, or other purposes, please contact:

• GitHub: https://github.com/Matsuk1/JiETNG/issues
• Email: matsuk1@proton.me

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Third-Party Licenses

JiETNG uses the following third-party libraries and services:

Python Libraries

• Flask - BSD License
• python-line-bot-sdk - Apache 2.0 License
• Pillow (PIL) - HPND License
• mysql-connector-python - GPL v2 with FOSS Exception
• cryptography - Apache 2.0 / BSD License

Data Sources

• DXRating - https://github.com/gekichumai/dxrating
• arcade-songs - https://arcade-songs.zetaraku.dev

Services

• LINE Messaging API - LINE Corporation
• SEGA『maimai でらっくす』 - SEGA Corporation

Acknowledgments

Special thanks to:

• The『maimai でらっくす』community
• Contributors to DXRating project
• All users who provide feedback

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Last Updated: November 2025

For the latest version of this license, see the LICENSE file in the repository.