Yeah, just install xscreensaver. There are a bunch of command line only ones too, but xscreensaver has the biggest selection. You don't need to install a desktop, just Xserver is enough.
Code: Select all
sudo of-install-xorg
sudo apt update
sudo apt install xscreensaver
Code: Select all
sudo of-expand
It's not necessary to make hardware changes to get full performance from the CPU - the thermal throttling level has been raised from 70 to 80 deg C in kernel and in my testing I've never managed to get it to exceed about 76 deg C.