1. Overview

This privacy policy outlines how FastGH3 (hereinafter referred to as "the software") collects, uses, and protects information that may be generated or shared as a result of using the software. The software respects your privacy, and no personally identifiable information (PII) is collected, stored, or shared, except for specific cases outlined below, which are strictly for error diagnosis and feature functionality.

2. Data Collection

This privacy policy outlines how FastGH3 (hereinafter referred to as "the software") collects, uses, and protects information that may be generated or shared as a result of using the software. The software respects your privacy, and no personally identifiable information (PII) is collected, stored, or shared, except for specific cases outlined below, which are strictly for error diagnosis and feature functionality.

• Program logs containing printed errors.
• Software version information (build date, version number, git branch).
• Name/path of the user's temporary directory.
• Paths of user input files (.chart or MIDI sequences, rhythm game data).
• One of the user input files may be included (such as .chart or MIDI files).
• System language when localization information is printed as part of native error reporting.
• Paths to external software used by the mod (such as FFmpeg, 7-Zip, WinRAR) for performance improvements over the mod's stock utilities or compatibility with a wider range of formats.

These logs are handled by the integral part of the software known as the "launcher" and not by the game executable itself. The data collected is strictly used for diagnostics and error resolution.

3. Optional File Association

The installer and a command file associated with the software may add registry keys to simplify file association, enabling input files to be opened directly by the software. This is optional when using the portable version. The software will still function properly without these registry modifications.

4. Use of User Input Files

The software allows users to select and play songs from input files (.chart or MIDI sequences). These files are not modified by the software, nor are their directories or any related files (audio, background videos, or album covers). Only files within the installation directory, or in specific system locations (such as AppData/Local), will be modified by the software for saving settings or processing temporary files.

5. Temporary File Usage

Some files may be temporarily stored in the user’s temp directory during processes such as file extraction. Future versions of the software aim to handle such operations entirely in memory, eliminating the need for temporary files.

6. Limitations on Proprietary Game Executable

The game executable and its associated libraries (DLLs, middleware such as Bink and FMOD) bundled with the mod are proprietary and will never be granted access to modifying any system-related files or files outside their installation directory and AppData folder. These components do not connect to the internet, except for patched online multiplayer functionality. Attempts to connect to deprecated services (e.g., in-game advertising) by the original game have been patched and are non-functional.

7. Modding and Plugin Support

The mod introduces support for modifying the game executable's machine code using plugins and scripting features through mods. These plugins and mods may be prepackaged with the mod or downloaded separately. Any plugins or mods created by the developer or other users are open source, ensuring transparency. Plugins (core.dll, FastGH3.dll, TapHopoChord.dll, SongLimitFix.dll, modifiers.dll, NoteLimitFix.dll) prepackaged with this software are essential to the software's main features and do not modify system-related files and settings. The game executable remains proprietary and is not open-sourced, until reverse engineered fully for building support.

8. Security of Data

All logs and files uploaded to the developer's server for diagnostic purposes are protected and will not be shared publicly unless deemed necessary (such as for addressing critical issues via an internet post or GitHub issue). The developer is committed to maintaining the confidentiality and integrity of all user data submitted through error logs.

9. Changes to This Policy

The developer reserves the right to update this policy. Any significant changes will be communicated through software updates or announcements. Continued use of the software following the changes signifies your acceptance of the updated policy.

10. Contact Information

For questions or concerns regarding this privacy policy, please contact the developer at [email protected].