Hooking KSH up to the system clipboard? (macOS)

[posguy99]

example (for zsh) https://apple.stackexchange.com/questions/336228/make-ctrl-k-in-terminal-copy-to-the-system-clipboard?rq=1

The problem as I see it is two-fold. The KEYBD trap happens BEFORE the defined function of the key is processed, and ksh doesn't expose the result of the editing key(s).

Zsh gets around the first by performing the function of the key inside the binding, and it has a variable that gives access to the result.

Is there a way to do this without involving something like tmux ?