Codex, running while you’re away.
Codex on a $6 VPS changes how you work, until the VPS needs looking after. Cube is the same idea without the upkeep.
Why people move Codex off their laptop
Long Codex tasks don’t fit a laptop’s day. You want to start a task on the train and review it at your desk, or queue three before bed. So people rent a small VPS, install Codex, SSH in and run it in tmux. It works. Then the server needs updates, runs out of disk, or a session dies and you spend an evening SSHing in to fix it.
Cube: the always-on machine, handled
Cube is a full Linux computer in the cloud, with an app for your Mac and the web on top.
- Codex keeps working after you close your laptop.
- Your repos are already there. Sign in with GitHub and open any project.
- Worktrees for every idea, so parallel Codex tasks don’t collide.
- SSH when you want it. From any terminal or editor, or from the Codex app; Cube sets it up for you.
- Back up or start over. Download your files, or reset the machine, from the app.
From download to first task
- Download Cube for Mac and sign in with GitHub.
- Install Codex from the Agents list and sign in.
- Open a repo and give Codex its task. Close the laptop if you like.
Prefer the Codex app on your Mac? Connect it to your Cube and its threads run on the computer.
Questions
Do I need a VPS to run Codex in the cloud?
No. Cube is a Linux computer in the cloud that you set up from the Mac app or app.cube.computer in about two minutes. You don’t pick a provider, size a server or configure SSH yourself.
Do I use my own ChatGPT or OpenAI account?
Yes. You install Codex on your Cube and sign in with your own account, just as you would locally.
Can I run Codex and Claude Code on the same machine?
Yes. Cube runs Codex, Claude Code, Gemini CLI, OpenCode and other coding agents side by side, each in its own session.