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protected-mode

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32-bit x86 OS from scratch — protected mode, paging, Ring 3 isolation, ELF loader, custom filesystem, full network stack (e1000/ARP/IP/TCP/DHCP), SB16 audio, PS/2 mouse, userland shell, package manager, and Doom running as a userland app. Zero external dependencies.

  • Updated Jun 27, 2026
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