64-bit UEFI OS. Ring 0 only. No ring 3. Cooperative multitasking (tasks yield manually). No context switching — all tasks share one 128MB stack. IDT 0-31 only. VA=PA. PCI, XHCI, RDTSC, HDA, ATA, FAT32, GPT, REP(string instructions), AVX256, SSE4.2, FPU, NT(Non-Temporal). All polling.

(I used LLM in some of my code.)

Github Link: https://github.com/Dydudu37d/NeuroSamaOS

I'm the author. Happy to answer any questions!