Recomp / OS & system / Macintosh

System7

Experimental bootable reimplementation of classic Mac OS System 7 for x86 PCs, documented through reverse-engineering notes.

Clean-room AI-assisted wip
Stars367
Commits, 30 days861
Latest releasev0.1.2350-bd7e84d9Oct 3, 2026
Last pushOct 6, 2026

GitHub figures as of 2026-10-14, refreshed daily.

Facts

Original
Apple Macintosh System 7 (1991)
Platform
Macintosh
Method
Clean-room
Provenance
AI-assisted · README says it began as an AI-assisted reverse-engineering research project and ships CLAUDE.md what this means
Status
wip
Licence
MIT
Team
Kelsidavis
Started
2025-09
First release
2025-12
Runs on
x86 (GRUB2/Multiboot2), QEMU
Needs the original
No

How to get it legally

Download it from the official repository. No original files are needed.

This project was rebuilt clean-room by Kelsidavis. Facts last checked 2026-10-13.

Sources

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