I made something similar that lets you run TUI applications inside other terminals via ghostty-vt, to implement things like TMUX in opentui It will be used to

I made something similar that lets you run TUI applications inside other terminals via ghostty-vt, to implement things like TMUX in opentui It will be used to render ANSI inside opencode https://github.com/remorses/ghostty-opentui https://github.com/remorses/ghostty-opentui