unimatrix
Simulate the Matrix look with Unicode characters.
TLDR
Mimic the default output of cmatrix (no unicode, works in a TTY)
$ unimatrix --no-bold --speed [96] --character-list [o]
No bold characters, slowly, with emojis, numbers, and a few symbols
$ unimatrix --no-bold --speed [50] --character-list [ens]
Change the color of characters
$ unimatrix --color [red|green|blue|white|...]
Select character set(s) using letter codes (see unimatrix --help for available character sets)
$ unimatrix --character-list [character_sets]
Change the scrolling speed
$ unimatrix --speed [number]