Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V
I pretty much always have a kernel project going on, and have been that way for decades. Over the past couple of years, that's been Anos, which has gotten further along than any of my previous hobby kernels, supporting IPC, multitasking, SMP (x86-64 only right now) and running on real hardware. LLMs (mostly Claude Code) have been used during development, but I learned early on that it's not _great_ at code at this level, so I've restricted its use to mostly documentation and tests. There's _a little_ AI code in the user space, but I have a strict "no AI code" rule in the kernel itself. I…
Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V launched on April 4, 2026 with 115 votes, #333 of 21,248 launches that month and more than 95% of that year's launches.
In plain words
Anos is a compact microkernel written in approximately 100 KiB for x86-64 and RISC-V architectures. It implements inter-process communication, multitasking, and symmetric multiprocessing on x86-64, running on real hardware. Developed as a long-term hobby project by an experienced kernel developer, it prioritizes hand-written code in the kernel itself while using AI tools selectively for documentation and testing. The project emphasizes learning through direct implementation rather than code generation.
written from the facts on this page · September 2026
From the sources
An operating system. Contribute to roscopeco/anos development by creating an account on GitHub.
In the maker’s words, at launch
I pretty much always have a kernel project going on, and have been that way for decades. Over the past couple of years, that's been Anos, which has gotten further along than any of my previous hobby kernels, supporting IPC, multitasking, SMP (x86-64 only right now) and running on real hardware. LLMs (mostly Claude…
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With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
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