cmux: The Native macOS Terminal Built for Running AI Coding Agents in Parallel (opens in new tab)

If you have ever run three Claude Code sessions at the same time in a stock terminal, you know the pain. Notifications are generic ("Claude is waiting for your input" — every single time), tab titles blur together, and there is no good way to tell which agent needs you without clicking into each pane one by one. cmux was built to fix exactly this. What Is cmux? cmux is an open-source, native macOS terminal application built on top of Ghostty, the GPU-accelerated terminal emulator. It wraps Gh...