I used "brew install bash && brew info bash" to get the path, then ran that shell (zsh doesn't work), then inside that new bash, ran the screensaver app.
I found the 4k fullscreen perf in iTerm2 to be not-great, so I did it again in the kitty (GPU powered) terminal macos app, and it was good.
Reformat Windows computers for $100 a pop, advertise with fliers at the supermarket or somewhere public where non-computer people usually go. Say something like - fix any computer problem guaranteed.
Use it to convert customer images sent from iphones.