Fomos

I think you're making a wrong assumption about how this OS works, its programs are still loaded from ELF executables, the parser is here: https://github.com/Ruddle/Fomos/blob/91cf732f173a01cdec3df43... The "app is a function" distinction is simply about the `Context` struct passed it, otherwise it loads and runs executables as expected (load ELf memory segments in, jump to entrypoint) Edit: I guess I'd also add that on Linux or other OSs it's possible to construct and run process completely from memory with no on-disk executable file. JIT compilers do effectively this, the produce the executable code completely in memory and run it.

Sounds like it's a framebuffer, and yes the apps draw themselves. Looking at the source code of the cursor app [0], we can see it draws the mouse cursor and skips the rest. The transparent console app [1] is doing something more complicated which I haven't tried to fully understand, but which definitely involves massaging pixels and even temporarily saves pixel data in ctx.store.b1 and ctx.store.b2 so it looks like some kind of double buffering. [0]: https://github.com/Ruddle/Fomos/blob/cba0460af59e63f46c7646f8a2f29d574ff0d722/app_… [1]: https://github.com/Ruddle/Fomos/blob/cba0460af59e63f46c7646f8a2f29d574ff0d722/app_…

I also do not know. Perhaps worth asking over at https://github.com/Ruddle/Fomos/issues