FINAL CUT - Library for creating terminal applications with text-based widgets
termbox - Termbox is a library that helps making terminal-based pseudo-GUIs.
Limnor Studio - It is a generic-purpose no-code programming system.
Turbo Vision - A Turbo Vision port to the GNU compiler and more
FTXUI - Get the latest version of ftxui-starter for Linux - My summary
newt - Programming library for color text mode, widget based user interfaces.