some os links2022-04-13 11:50:006.S081 xv6Emulate RISC-V on a Raspberry PiCreating an OS from scratchWriting a simple operation from scratch (2010)Writing a Simple Operating System - from Scratch2015-16 lecture notescs4118 System/Kernel Dev GuidesOperating Systems: Three Easy PiecesComputer Systems from the Ground UpCS140e - Pi OS with Rust