This p5.js sketch generate the Commodore one-line code: 10 PRINT CHR$(205.5+RND(1)); : GOTO 10 https://www.youtube.com/watch?v=m9joBLOZVEo
This animation is on http://volfeganbox.byethost14.com/projects.html on the section 10 PRINT CHR$(205.5+RND(1)); : GOTO 10.
Use this program as you see fit.