Tutorial

Use Codex CLI from your phone with SSH.

This flow is for setup and one-shot server work. It shows exactly what happens in sshChat, what happens in the browser, and what actually runs on Ubuntu.

Step 1 of 4Waiting for confirmation

Step 1: Open your Ubuntu host in sshChat

sshChat AppRemote Server

Where this happens

You open the host in sshChat. The commands execute on the remote Ubuntu box.

Type this here

whoami
uname -a
pwd

What you should confirm

Normal one-shot commands already work before you install anything else.

Step 2: Install Codex CLI on the server

sshChat AppRemote Server

Where this happens

You paste the commands into sshChat. They run on the Ubuntu server.

Type this here

cd /tmp
curl -L https://github.com/openai/codex/releases/latest/download/codex-x86_64-unknown-linux-musl.tar.gz -o codex.tar.gz
tar -xzf codex.tar.gz
sudo mv codex-x86_64-unknown-linux-musl /usr/local/bin/codex
sudo chmod +x /usr/local/bin/codex
codex --version

What you should see

The last line prints the installed Codex CLI version. If it does, the binary is ready.

Step 3: Complete device login in the browser

sshChat AppPhone BrowserRemote Server

Where this happens

You start the login in sshChat. Then you switch to the browser on your phone to approve it with your ChatGPT subscription.

Type this here

codex login --device-auth

What to do next

sshChat shows the verification URL and code. Open that URL in your browser, log in, enter the code, then return to sshChat.

Step 4: Use sshChat for one-shot Codex-adjacent maintenance

sshChat AppRemote Server

Where this happens

You use sshChat as the command surface. The work happens on the server.

Good commands here

codex --version
git status
docker compose ps
docker compose logs --tail 100

When to use Stream Mode

Use Stream Mode for long commands like npm install or docker compose build. Keep short snapshot commands in normal mode.

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