Show HN: Multitui – sandbox claude/codex/gemini on macOS without containers
multitui.comI made Multitui to control the sandbox of coding agents easily without changing my dev environment (no special container or VM). There's no configuration required in your local dev environment... just launch ClaudeCode.app instead of claude in your general terminal. Containers and VMs can be useful, but I always have a bunch of projects going and those solutions feel heavy.
Multitui creates single-purpose native macOS apps for any terminal app, with optional sandbox. It uses the built-in macOS sandbox-exec along with log monitoring to give you an easy UI to manage rules, see what's being blocked, and add rules as you observe files that need to be allowed.
Does this seem useful? Does it need network sandboxing too?
Also, it's on Product Hunt today, so an upvote would be appreciated!
https://www.producthunt.com/products/multitui
-David
I understand this macOS based. Do you think it can be ported to Linux (my intuition tells me this very macOS-specific, but maybe I am missing something)?
The same concept is possible on Linux, but I don't think anyone has created a nice UI for it yet. There was a post yesterday about doing it on the command line in linux: https://news.ycombinator.com/item?id=46874139
One of the nice things in Multitui is that it monitors what is blocked and gives you a way to add a read/write rule from the UI.
[dead]