# amaneureka/AtomOS

A multitasking monolithic Kernel based x86 targeting Operating System written in C# from scratch aiming for high-level implementation of drivers in managed environment.

Repository: https://github.com/amaneureka/AtomOS
Canonical: https://ross.abutalabs.com/products/atomos
Homepage: http://www.atomixos.com
Language: C#
License: BSD-3-Clause
License Family: permissive
Topics: operating-system
Last push: 2017-03-18T20:44:21+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3796, "days_push": 3455, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1269, forks 84 (observed 2026-08-28T04:04:11.577563+00:00)

## What it is
AtomOS is a multitasking monolithic kernel-based x86 operating system written from scratch in C#, targeting high-level driver implementation in a managed environment. It includes kernel features like paging, multithreading, ELF loading, syscalls, shared memory, and a compositor, along with drivers for PS2 devices, IDE, ACPI, and FAT-32.

## Use cases
- build an operating system in C#
- learn how monolithic kernels work
- run managed code on bare metal x86
- study kernel driver development in a managed environment
- experiment with paging and multithreading at the kernel level
- explore a hobby OS with a compositor and FAT-32 support

## When to choose
- you want to study or extend a C#-based hobby operating system
- you need a reference for implementing paging, syscalls, or ELF loading from scratch
- you are exploring managed-code kernels for educational purposes

## When to avoid
- you need a production-ready or actively maintained operating system
- you require modern hardware support or 64-bit architectures
- you need a stable platform for deploying applications

## Facets
- artifact type: application
- maturity: abandoned
- function: compiler
- domain: operating-systems, embedded-systems, developer-tools
- platform: c, cpp, cross-platform
- tags: monolithic-kernel, managed-kernel, csharp-os, x86, educational, bare-metal, operating-system, driver

## Member repositories
- amaneureka/AtomOS (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:11.577563+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T05:03:30.792435+00:00, confidence not recorded.
  - readme: https://github.com/amaneureka/AtomOS (fetched 2026-08-28T04:04:11.577563+00:00, sha 037bf2544c6c)
- Data as of 2026-08-30T08:39:29.467469+00:00.