Superrepos and Why Claude Code Is the Best Worktree Manager
A lot of people have asked why cmux doesn't have a worktree manager yet. The best manager can choose a worktree, second checkout, sandbox, VM, or GPU cluster.
Blog
Introducing cmux Fork
Branch an agent conversation into a new split, tab, or workspace without losing its context.
cmux home
We're not adding worktrees to cmux. It's a primitive, so you can script your own worktrees, multiple checkouts, or remote dev and make it feel like home.
cmux history
Reopen closed terminals, browsers, workspaces, and agent sessions with Cmd+Shift+T, and retrace your focus with Cmd+[ and Cmd+].
cmux Finder
cmux now has a file explorer that previews videos, images, PDFs, and markdown files.
cmux Vault
Search Codex, Claude Code, OpenCode, and Pi sessions from the Vault pane and drag them into your workspace.
Passkey auth in the cmux browser
cmux's embedded browser supports passkey authentication and can import cookies from other browsers with cmux browser import.
Task Manager in cmux
Use cmux top or Task Manager from the command palette to see CPU and RAM usage for your coding agents.
A better markdown viewer in cmux
Open README.md with cmux open or drag markdown files from the right sidebar.
Unread workspace shortcuts in cmux
Cmd+Control+U cycles through unread workspaces while keeping them unread, and Cmd+Option+U toggles read state.
Session restore in cmux
How cmux restores layouts and resumes Claude Code, Codex, OpenCode, Gemini CLI, Antigravity CLI, Grok Build CLI, and other agent sessions.
cmux SSH
One command gives you persistent remote sessions, browser panes that reach remote ports, and agent notifications that come home.
Claude Code teammate agents as native cmux panes
Claude Code's teammate mode requires tmux. cmux fakes it so teammates become native splits with sidebar metadata and notifications.
oh-my-openagent subagents as native cmux panes
oh-my-openagent orchestrates specialist Claude, GPT, and Gemini agents in parallel. cmux omo turns each tmux pane into a native split.
cmux is now GPL
cmux relicensed from AGPL-3.0 to GPL-3.0.
Cmd+Shift+U
How Cmd+Shift+U navigates between finished agents across workspaces in cmux.
The Zen of cmux
cmux is a primitive, not a solution. It gives you composable pieces and your workflow is up to you.
Launching cmux on Show HN
cmux hit #2 on Hacker News, got shared by Mitchell Hashimoto, and went viral in Japan.
Introducing cmux
A native macOS terminal built on Ghostty, designed for running multiple AI coding agents side by side.