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Oeiuwq Faith Blog OpenSource Porfolio

jgarzik/hk

A modern, Linux compatible OS kernel
Source code at GitHub https://github.com/jgarzik/hk
jgarzik/hk.json
{
  "createdAt": "2025-12-18T23:38:31Z",
  "defaultBranch": "main",
  "description": "A modern, Linux compatible OS kernel",
  "fullName": "jgarzik/hk",
  "homepage": "",
  "language": "Rust",
  "name": "hk",
  "pushedAt": "2025-12-30T02:03:26Z",
  "stargazersCount": 328,
  "topics": [
    "kernel",
    "linux",
    "linux-kernel"
  ],
  "updatedAt": "2026-01-06T11:18:38Z",
  "url": "https://github.com/jgarzik/hk"
}

hk - an operating system kernel written in Rust

Section titled “hk - an operating system kernel written in Rust”

Design goals

Section titled “Design goals”

Modern multi-processing

Section titled “Modern multi-processing”

Multi-threaded, multi-core: Designed for modern 64-bit multi-core processors.

Initially targeting x86-64 and aarch64.

Device tree

Section titled “Device tree”

The kernel uses a device tree to describe the hardware components of the system. This allows for a flexible and extensible way to manage hardware resources.

Linux compatible

Section titled “Linux compatible”

Uses the Linux syscall ABI for each respective architecture.

Wishlist

Section titled “Wishlist”
  • hybrid kernel/user model for DMA’ing device drivers
  • eBPF even more widely used
  • Policy cut-off for legacy hardware: Require >= 2021 ? Open to debate.

Building etc

Section titled “Building etc”

Run make check or make check-arm. Run make help for more info.

Requires qemu, dosfstools, and iso tools.

Naming

Section titled “Naming”

hk stands for… happy koala, or hacker kernel, or hong kong,