GoKawiilHobby OS Moxnox hits version 1.0 with NT-style design and Btrfs support
Moxnox 1.0, a hobbyist operating system modeled on Windows NT's syscall design but POSIX-compatible, has been released for amd64 and aarch64 architectures. The roughly 130,000-line C++ project includes a GNU base system, can run on the Btrfs filesystem, and is mature enough to self-host, meaning it can compile itself. The developer notes the Btrfs implementation works for basic use but warns against mounting anything beyond disposable test filesystems.
GoKawiil's interpretation of the reporting above, not reported fact.
The project is a reminder that individual developers continue to build full operating systems from scratch, blending design philosophies usually kept separate—NT-style kernel architecture with Unix-style software compatibility. Self-hosting capability is often seen by OS hobbyists as a key maturity milestone, suggesting the project has reached a stable enough base to support further development on itself rather than relying on another OS to build it.
- Moxnox 1.0 is a hobby OS combining Windows NT-style internals with POSIX compatibility.
- The ~130,000-line C++ system runs on amd64 and aarch64 and can self-host, building itself.
- Its Btrfs filesystem support is functional but experimental, so only test data should be used.
Source: github.com, 2026-10-27
Published there as: “Moxnox 1.0: NT-Like, POSIX-Compatible OS Running Atop Btrfs”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.