Aurion OS – A 32-bit GUI operating system written from scratch in C
Hi HN! I'm 13 and I built Aurion OS as a solo learning project over 14 days (~12 hours/day). It's a 32-bit x86 operating system written entirely in C and x86 Assembly with no external libraries. What it has: Custom bootloader and kernel VESA framebuffer graphics (1920x1080, double-buffered) Window manager with draggable, overlapping windows macOS-inspired dock with transparency PS/2 keyboard and mouse drivers ATA hard drive driver with filesystem PCI bus enumeration RTL8139 network driver (WIP) Real-time clock Runs on just 16MB RAM (up to 10 windows simultaneously) Built-in apps:…
In plain words
Aurion OS is a 32-bit x86 operating system built entirely in C and Assembly without external libraries. It features a graphical interface with a window manager, draggable windows, a dock, keyboard and mouse support, hard drive access, and built-in applications including a terminal, notepad, calculator, paint program, and games. The operating system runs on minimal resources, requiring just 16MB of RAM, and is designed for educational purposes. It currently runs best on virtual machines like QEMU and VirtualBox.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN! I'm 13 and I built Aurion OS as a solo learning project over 14 days (~12 hours/day). It's a 32-bit x86 operating system written entirely in C and x86 Assembly with no external libraries. What it has: Custom bootloader and kernel VESA framebuffer graphics (1920x1080, double-buffered) Window manager with draggable, overlapping windows macOS-inspired dock with transparency PS/2 keyboard and mouse drivers ATA hard drive driver with filesystem PCI bus enumeration RTL8139 network driver (WIP) Real-time clock Runs on just 16MB RAM (up to 10 windows simultaneously) Built-in apps: Terminal (with DOS mode), Notepad (save/load), Calculator, Paint (multiple colors and brush sizes), Snake game, Settings (theme switching), and System Info. Currently works best on QEMU, VirtualBox, and VMware. Real hardware support is still a work in progress. Next goal: TCP/IP networking stack. I'd love any feedback, suggestions, or criticism. This is my first OS project and I learned mass amounts while building it. Happy to answer any technical questions!
Does the same job
all alternatives →- BOBanan-OS, an Unix-like operating system written from scratch2024 · github.com · ▲333
This is my operating system that I've been working for the past 2 years. All of the code is written exclusively by me except from ported software. banan-os has a monolithic kernel targeting x86 (i686) and x86_64 architectures. The project consists of bootloader, kernel and userspace libraries (libc, libGUI, libFont, ...). It also uses my custom C++ standard library partly based on stdc++. Currently I have basic TTY and GUI environment with some of the basic UNIX utilities like cp, ls and stat. I have basic support for USB (keyboard/mouse/storage), disks (NVMe, AHCI), custom…
- AOAurion OS, A 1.8MB OS with a browser, try it live (C/x86 ASM)Apr 2026 · aurionos.vercel.app · ▲5
I posted Aurion OS a few weeks ago on HN. Since then, the OS has gone from Beta to v1.0 Release with a lot of improvements: Blaze Browser: HTML/CSS/JS rendering with tabs and a developer console (local only, no full http/https support for now) Installer with user account setup and app selection Multi-resolution support (800x600 to 2560x1440, I plan to add 4096x2160 pixels in next versions) Unix-style luka@aurion prompt Serbian keyboard layout Python interpreter and Make build system 50+ terminal commands Window manager improvements and bug fixes 1.8MB ISO (entire OS including…
- MOMunal OS: a graphical experimental OS with WASM sandboxing2025 · github.com · ▲313
Hello HN! Showing off the first version of Munal OS, an experimental operating system I have been writing in Rust on and off for the past few years. https://github.com/Askannz/munal-os It's an unikernel design that is compiled as a single EFI binary and does not use virtual address spaces for process isolation. Instead, applications are compiled to WASM and run inside of an embedded WASM engine. Other features: * Fully graphical interface in HD resolution with mouse and keyboard support * Desktop shell with window manager and contextual radial menus * PCI and VirtIO…
- ADA DOS-like hobby OS written in Rust and x86 assembly2025 · github.com · ▲207
To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition
- MMMyraOS – My 32-bit operating system in C and ASM (Hack Club project)Oct 2025 · github.com · ▲247
Hi HN, I’m Dvir, a young developer. Last year, I got rejected after a job interview because I lacked some CPU knowledge. After that, I decided to deepen my understanding in the low level world and learn how things work under the hood. I decided to try and create an OS in C and ASM as a way to broaden my knowledge in this area. This took me on the most interesting ride, where I’ve learned about OS theory and low level programming on a whole new level. I’ve spent hours upon hours, blood and tears, reading different OS theory blogs, learning low level concepts, debugging, testing and working on…
- H1Homebrew 16bit CPU from 74HC logic with C compiler and Unix-like OS2023 · sol-1.org · ▲192
This is a 16bit CPU+Minicomputer from pure 74 series logic. It has user/kernel modes, virtual memory, prioritized IRQ's and DMA. It has a full C compiler and a unix-like OS. It's still in development.
More work this month
the category →
The app store for voice native apps that lives in your notch
Work · 29d ago · voiceos.com
Mac-native app for screenshots, recordings and collaboration
Work · 5d ago · cleanshot.com
Launched alongside, March 2026
the whole month →
Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
