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1. Ultra Ultra Public

   A from-scratch kernel that aims to be (nearly) fully ABI compatible with the Linux kernel userland

   C 33 1

2. Hyper Hyper Public

   A modern x86/ARM bootloader supporting both BIOS and UEFI

   C 69 2

3. UltraProtocol UltraProtocol Public

   A generic boot protocol that doesn't require any special in-kernel sections.

   C 11