Multitui – Create sandboxed native macOS apps for terminal UIs

Summary: Multitui generates individual macOS apps for terminal user interface (TUI) programs with optional sandboxing. It enables running TUI tools like claude code or codex as dedicated native apps without altering the development environment or using containers or VMs.

What it does

Multitui creates single-purpose macOS apps for any terminal app using macOS sandbox-exec and log monitoring to manage sandbox rules and file access. The apps integrate with macOS features like Finder and global shortcuts.

Who it's for

Developers who want to run and sandbox TUI programs on macOS without modifying their existing development setup or using heavy containers.

Why it matters

It simplifies sandbox control for coding agents and improves context switching by turning TUIs into standalone native apps.