🖥️ How to host an FNFast Private Server

Hosting your own server allows you to have a private community leaderboard, custom materials, and your own curated list of charts.

Step 1: Prepare the Discovery Link

FNFast doesn't hardcode its IP; it looks for a "Bootstrap" URL.

1. Create a public file (GitHub Pages, Pastebin, or your own site).
2. Use the encode.py tool (found in the server folder) to encrypt your Server's IP/URL.
3. Paste that encrypted string into your public file.

Step 2: Patch the Executable

1. Open the FNFast executable (PsychEngine.exe or FNFast.exe) in a hex editor like hexed.it.
2. Search for the text string: kazancik.github.io/A/
3. Replace it with the URL to your public file created in Step 1.
   • IMPORTANT: Your new URL must be the SAME length or SHORTER than the original. Fill extra space with zeros/nulls if needed.
4. Save the patched .exe.

Step 3: Start the Python Backend

1. Install Python 3.10+.
2. Open a terminal in /fnfast-server and run:

   pip install -r requirements.txt