This so reminds me of the command line I've added to a little fun tool I wrote in Borland C ~25 years ago. It was a strobe light using your monitor and I wanted

This so reminds me of the command line I've added to a little fun tool I wrote in Borland C ~25 years ago. It was a strobe light using your monitor and I wanted something to fine tune the timings and color so I sat down a whole afternoon and added a command line interface including line editing and history. So much fun!