Lions have used their own serial terminal program for at least 20 years now, after living with the limitations of minicom for 10 years.  This is a note to consider finally adding an interactive configuration menu, persistent settings, in addition to the historic command line options.  There are so many options now, it's almost minicom-like.  Lions would keep out the delays, status bars, line wrapping, nested menus, & confirmations.

https://github.com/heroineworshiper/utils/blob/master/terminal.c

The bonuses have been compilation with no dependencies so it can easily be built on bare metal systems, easily reproducible configurations with command line options.  

The big problem is getting into the menu without a ctrl key.  ctrl-a is used by screen.  It's a pain point with minicom.  It could just display during startup with another command line option.