How to use Claude Code and Codex on Linux with a desktop app

Claude Code and Codex both run on Linux as command-line tools. A desktop app around them gives you one window to start, watch and review several sessions, instead of a terminal per agent. Moontors, an agentic development environment (ADE), runs on Linux as an AppImage or a .deb, with Claude Code, Codex and Gemini CLI side by side.

Install Moontors

Moontors needs x86-64 Linux with a desktop. Get it from the latest release:

the AppImage: make it executable (chmod +x Moontors-x86_64.AppImage) and run it. It needs FUSE; without it, start it with --appimage-extract-and-run.
the .deb, for Ubuntu and Debian: install it with sudo apt install ./<file>.deb.

You’ll also want git, for worktree sessions and diffs.

You don’t install the agents yourself: Moontors downloads and verifies each agent’s own program the first time you use it. Then sign in to each:

Claude Code with a Claude subscription in the browser, or an Anthropic API key;
Codex with a ChatGPT sign-in in the browser or with a device code, or an OpenAI API key.

API keys are kept in your system’s keychain. See Signing in.

Start working

Choose Create session, pick a folder and the agent, and give it a task. Several sessions can run at once, each as a card on the board, and in its own git worktree if you want. See How to run several Claude Code sessions in parallel.

What differs on Linux

Closing the window quits the app, but the sessions keep working in the background service; see Notifications for what that means for notifications. The browser sandbox, signing, updates and spell checking differ too: Known limits says how, for the AppImage and the .deb each.

Questions

Which Linux systems does Moontors run on?

x86-64 Linux with a desktop: the AppImage on most distributions, and the .deb on Ubuntu and Debian.

Are the Linux packages signed?

No. Known limits says what that means for each package’s updates.

Does Gemini CLI run on Linux too?

Yes. Sign in to it with a Gemini API key, and it runs beside Claude Code and Codex.