This program written in C will create some basic animation of ascii-art loaded from a txt file, while rendering the matrix effect in the terminal window.
You can see it by yourself right now if you have docker: docker run -it --rm --log-driver none --cap-drop=ALL --read-only --net none --security-opt=no-new-privileges --name ascii-matrix defnotgustavom/ascii-matrix
-EDIT- Whoops. Just realized its a fork. Eeeeeehhhh... it'll give you a nice idea regardless.
I actually created a new image with it -- docker run -it --rm --log-driver none --cap-drop=ALL --read-only --net none --security-opt=no-new-privileges --name animatrix defnotgustavom/animatrix