How to make a vim-like interface?

I know how to write programs that have a simple loop/scan UI (like the terminal), but how do you make one that has a vim-like interface (i.e. a permanent horizontal bar at the bottom, and the ability to move the cursor around, and replace characters)?

This might help: https://github.com/driusan/de

Thank you!

Take a look at ncurses or terminal libraries like https://github.com/nsf/termbox-go

Fantastic, thank you!