In #125, there was a short discussion of "Immediate Mode" aka "getch" in the upcoming release of OTP 28. Here's a couple of useful features that would be possible with "Immediate Mode".

History Navigation

In interactive mode, use up/down arrows to view command history.

Tab Completion

In interactive mode, add tab completion or fzf style finder when matching filenames for the 'p' command.

I expect there will be many other ideas for Immediate Mode. Just putting this out there in advance of the OTP 28 release.