
OpenAI Codex CLI on Android with Termux
Introduction Run OpenAI Codex CLI on Android with Termux, then verify the setup by generating and testing a small Node.js Hono app. Optional Termux:X11/XFCE setup is included for Samsung DeX or desktop-style use. The Hono server binds to 127.0.0.1:3000 for same-phone development only. Prerequisites Android ARM64 phone, for example Samsung Galaxy S23 Termux from F-Droid or GitHub Termux:X11 from GitHub Project code stored in ~/projects, not shared storage 1. Install Termux and Termux:X11 Install these Android apps: ...