The code can be found by clicking here. Then save it as ttymenu.c and compile this with "gcc ttymenu.c -o ttymenu -O3 -Wall -static (-Bstatic if you are on macos)".
Forgot to mention it also has a "poor man's htop" at the top center of the screen, that fetches memory and cpu usage at each keystroke (only). Definitely not for the "powerhouse PC gamer" out there, but for the potatoes (raspberry pi zero, a very old router, etc).