# EtchedPixels/FUZIX

FuzixOS: Because Small Is Beautiful

Repository: https://github.com/EtchedPixels/FUZIX
Canonical: https://ross.abutalabs.com/products/fuzix
Language: C
License: NOASSERTION
License Family: other
Archived: true
Last push: 2025-09-02T10:04:16+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 40, release rhythm 35, longevity 100
- inputs: {"age_days": 4324, "days_push": 365, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2458, forks 301 (observed 2026-08-28T04:06:53.313272+00:00)

## What it is
FUZIX is a small Unix-like operating system for classic microcomputers and embedded targets, derived from UZI forks and extended toward System V/POSIX semantics. It supports multiple processes via banked memory or swapping across CPUs like the Z80, 6502, 6809, and 68000.

## Use cases
- run a unix-like os on a z80 homebrew computer
- retro computing operating system for 8-bit micros
- embedded multitasking os for small microcontrollers
- learn how a small unix kernel works
- boot a posix-ish system on vintage hardware

## When to choose
- you want a multitasking unix-like OS on 8-bit or 16-bit vintage/embedded hardware
- you want to study or hack on a small, readable Unix kernel
- you need POSIX-like APIs (termios, signals, fcntl) on tiny targets

## When to avoid
- you need a production-grade OS with drivers and hardware support for modern systems
- you want Linux compatibility or a large software ecosystem
- you need a stable, finished system - it is explicitly a work in progress

## Facets
- artifact type: application
- maturity: experimental
- function: embedded, concurrency
- domain: operating-systems, embedded-systems
- platform: embedded, cross-platform
- tags: unix-like, z80, 6502, retro-computing, kernel, posix, microcomputer, operating-system, linux

## Member repositories
- EtchedPixels/FUZIX (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:53.313272+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 2026-08-30T02:29:22.120560+00:00, confidence not recorded.
  - readme: https://github.com/EtchedPixels/FUZIX (fetched 2026-08-28T04:06:53.313272+00:00, sha 909483172cea)
- Data as of 2026-08-30T08:39:29.467469+00:00.