It takes a while to load but what you are seeing above is a live emulation of the screensaver software.
Once it’s loaded, the following commands are available through the keyboard:
|full charset mode (default)|
|green mode (default)|
If you run the screensaver on the real thing and send me a video of it, you are my hero.
Here’s a video of the software running on a real C64, courtesy Jordan McGee.