# Classic Macintosh software has been rebuilt for modern macOS

> Source: <https://blog.adafruit.com/2026/10/19/classic-macintosh-software-has-been-rebuilt-for-modern-macos/>
> Published: 2026-10-19 21:27:04+00:00

A collection of 68000 Mac programs from the 1980s and ’90s has been rebuilt as native macOS apps. The developer used Claude Opus 5.5 to reverse-engineer each one back to an approximation of its original source language, then ported the game logic to Swift or C with SDL. The original sounds and artwork are used. […]