Fox091Thai/Terminet.irc — reverse-engineered prompt

Build me a tiny old school web IRC style chat app that can run from one Python file with simple HTML templates. I want it to feel like an early internet chat room, very lightweight and easy to host on a small server or even a home computer.

Users should be able to register with only a username and password, then get a unique recovery or access code they must save because there’s no email or phone recovery. Add login, chat rooms, basic message history, file uploads with a reasonable limit, and simple chat commands like showing an image link, gif link, video link, and help.

Keep the interface plain and retro, not modern or polished. Store the database locally and auto create it if it doesn’t exist. Messages should be saved per user and room, and the app should have configurable secret keys and encryption settings instead of hardcoded defaults. Make it simple to run with Python, Flask, and browser access. Look up current docs online if you need to.