manaflow-ai/cmux at 19.2K Stars With +696 Today: Ghostty-Based macOS Terminal With AI Agent Notifications and Vertical Tabs Ships Nightly Builds

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cmux is a native Swift macOS terminal built on libghostty that adds vertical tabs showing git branch, PR status, listening ports, and intelligent notification rings that light up when AI coding agents need attention. Supports Claude Code, OpenCode, Codex, and Rovo Dev through notification sequences and remote execution shims. At 19,246 stars with +696 today, it's the fastest-growing terminal emulator on GitHub — purpose-built for developers running multiple concurrent AI agents.