Every pane runs on its owner's machine.

p2pmux is a terminal multiplexer for two or more people. You share a layout, not a computer: each pane's shell runs on the Mac of whoever created it, under that person's PATH, environment and credentials.

Install

curl -fsSL https://p2pmux.com/install.sh | sh

macOS, Apple Silicon or Intel. The script is served as plain text — read it first. It downloads a binary and its SHA256 from GitHub Releases, checks the hash, and copies one file into place.

Or build it yourself:

cargo install --git https://github.com/pelazas/p2pmux --locked

Use

p2pmux create          # then Ctrl+S for the join code
p2pmux join 4KP7Q-M2XRW

Ctrl+P then arrows for panes, Ctrl+T for tabs, Ctrl+Q to leave the session running.

What that buys you

Start an agent in your pane, on your subscription. A teammate can take control and drive it without ever holding your API key.
They host panes too. Same session, their machine, their credentials.
Direct peer-to-peer when the network allows, relayed when NAT says no. Encrypted either way, and the status bar tells you which path you are on.

This is a trusted shared shell. Whoever holds a pane can run commands as that Mac's user and read anything that user can read — including printing a secret to the screen. Credential files and processes never leave the host Mac, but that is not the same as being sandboxed. Both halves, in detail →