Bigger than ghostty is libghostty which enables things like: https://www.cmux.dev/

I tried it when it last had an HN post (a week ago?) and found it to be very buggy and went straight back to Ghostty.

what bugs did you hit? I have been using it a few days now no issues.

When I had 3 or more panes open one of them would freeze and be not recoverable without quitting the app. That's a deal killer when I'm trying to run 2 or 3 agents.

I’ll try that at work tomorrow. Interesting corner case. I wonder why it happens.