I’m confused by this. I didn’t see any Scratch code; just C!
It’s poorly labelled. It’s not an OS. It’s a script that packages the Linux kernel and a native executable export of https://scratch.mit.edu/projects/706910275/ and a bootloader. The code in that project just pokes the VGA framebuffer to write some code to the screen.
A proof of concept of how to deploy a pure Scratch userspace might be a better descriptioin.
Thanks! That makes a lot more sense now :)