Show HN: Lmux – A Lightweight macOS Terminal for Claude Code and Codex

Category: devtools

Tags: terminal, macos, ai-coding, swift, libghostty

Score: 6.3/10 (Innovation: 5, Technical: 7, Documentation: 8, Utility: 5)

Lmux is a lightweight native macOS terminal built on libghostty, specifically designed for developers who work with AI coding agents like Claude Code and Codex. It offers persistent workspaces that resume agent sessions, agent status tracking via hooks, prompt rewind, and polished IME support, positioning itself as a lean alternative to heavier terminals such as cmux.

Target audience: backend devs, AI engineers, macOS developers using Claude Code or Codex

Repository: https://github.com/sooftware/lmux · Swift · MIT · 2 stars

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