I clicked around in the kernel section and the other commenters highlighting the simplicity weren't lying. It's beautiful in its simplicity.
Seeing the screenshots I was kind of expecting this was a pre-emptive multi-tasking OS (forgetting what I read in the submission).
Things that thus surprised me on a cursory look:
- noticed krn_main() ends with `while (1);` [1]. I would've expected a "schedule" call or something. I assume there's no real busy loop burning CPU, maybe it's never meant to reach this code?
- I'm reminded of the "bare metal OS" when I see one of the apps call `krn_\*` functions directly [2].
[2]: https://github.com/luke8086/gentleos32/blob/ea691f14635c023d...