Banan-OS, an Unix-like operating system written from scratch
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…
In plain words
Banan-OS is a Unix-like operating system built from scratch over two years by a single developer. It features a monolithic kernel for x86 and x86-64 architectures, written entirely in C++ with an assembly bootloader. The system includes a bootloader, kernel, custom C++ standard library, and userspace components like libc and libGUI. It supports TTY and GUI environments, basic Unix utilities, USB devices, NVMe and AHCI storage, TCP/UDP networking, and a Unix-like filesystem. The project is available on GitHub.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
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 networking stack with TCP and UDP support, and a UNIX-like filesystem with /dev /tmp /proc filesystems. The whole project is written in C++ except for my BIOS bootloader that is written in 16-bit real mode assembly. I have been testing the OS mainly on virtual machines but also frequently on real hardware.
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