Huge thanks for all your work on this NiLuJe! I've done some work on a
Rust wrapper that's still quite incomplete but might be useful for some people. It adapts your script for dumping the private framebuffer on Sunxi so that it can be used like a regular fbink_dump. I've used it for a new accessibility feature in my remote control that lets you control a cursor on the Kobo's screen. There's a quick demo video of it in action on my Sage
here.
I also just added updated code for the SVG utility mentioned above to the repo as an example.