What is grok-build-mobile-persistent?

Grok Build Mobile Persistent is a self hosted web app that lets someone run the Grok command line AI assistant from their phone's browser, while keeping the session alive on the server even if the phone loses its network connection or the browser tab is closed. It is designed to feel like a small app you add to your phone's home screen rather than a website you visit each time. The core idea is that the actual Grok process keeps running inside a terminal multiplexer called tmux on a server the user controls, whether that is a rented server, a home computer, or a machine reached through a tunneling service. A password protected login screen and a small authentication service sit in front of a web based terminal program, so that reopening the page on the phone reattaches to the same ongoing session instead of starting a new one, and any long running task the AI agent was working on continues even while nobody is actively looking at it. Setting it up involves installing the authentication service, a Python program, along with the terminal server and tmux, and pointing them behind a reverse proxy or tunnel so the whole thing is reachable over HTTPS from a phone. The project includes a guided installer script that can create the configuration file and set things up automatically, or the pieces can be installed manually one at a time. The README also includes a ready made prompt someone could paste into an AI coding agent to have it perform the whole server side setup automatically. The project explicitly states that it is not affiliated with xAI, the maker of Grok, and that it does not provide any Grok API keys or subscription of its own. It is meant purely as an access layer that lets someone use their own existing Grok CLI login from a mobile browser. Because it exposes a real shell on the host machine, the documentation stresses using HTTPS, strong passwords, and not sharing one deployment with people you do not trust.