I would learn C and x86/arm assembly first enough to bootstrap. It's usually good to learn how to write ld linker scripts and how to make something bootable fr

I would learn C and x86/arm assembly first enough to bootstrap. It's usually good to learn how to write ld linker scripts and how to make something bootable from grub. Then, I would look Rust because it's easier to create correct no_std kernels. EDIT: Link spew turned into a gist https://gist.github.com/5a1b94e8fde45e37c55c5a13d97c9b3f https://gist.github.com/5a1b94e8fde45e37c55c5a13d97c9b3f