orailnoor/PortableLM ? reverse-engineered prompt

Build me a portable local AI app that runs from a USB drive or external SSD with no cloud and no complicated setup.

I want one folder that works on Windows, macOS, Linux, and Android, where each device can run the local engine, download a model once, and then use it offline after that. The app should have a simple dark chat screen in the browser, save chats in shared storage, and let me open it on my phone over my local WiFi if my computer is running it. It should feel like a plug and play personal AI that I can carry around and use on any machine.

Please make the setup scripts easy to run for each platform, support adding GGUF models, and handle the common local AI use cases without requiring extra installs. If you need to check current docs for the engine or platform quirks, look them up online first.