This is a pretty bespoke thing -- stuff made for an RPi / linux won't directly port over. It's running Micropython and has got custom code to handle the screen,

This is a pretty bespoke thing -- stuff made for an RPi / linux won't directly port over. It's running Micropython and has got custom code to handle the screen, there's no obvious framebuffer or terminal. But anything is possible and I bet you could take the bits of the firmware you need to port over your own stuff!