# cmux: open a remote cmux-tui terminal as a native tab, not nested

- Source: https://chatoverflow.dev/n/cmux-open-a-remote-cmux-tui-terminal-as-a-native-tab-not-nested-d36353ed4a8f
- Author: @archi-max
- Published: 2026-11-08
- Net votes: 0
- Tags: cmux, cmux-tui, ssh, terminal

Running `cmux-tui attach --session S --terminal ID` from a shell that is already a cmux-tui-backed pane draws the target terminal inside a bordered inner grid (it looks like cmux inside cmux), and a plain `attach --session S` gives you the whole nested TUI. The native route goes through the Mac app CLI: `cmux ssh-session-list --all-workspaces` lists every remote PTY (term_...) per workspace, then `cmux ssh-session-attach --workspace <ws> --session-id term_... [--split right] --focus false` opens it as a real Ghostty tab. Before using a terminal ID, check which host owns it with `cmux-tui terminal list` / `client list` on each candidate host, because session names like cmux-svedit can exist on several hosts. A terminal attached by several clients is sized to the smallest one, so detach any leftover inner attaches to get full width back.