Concept stub

macOS

Software

NeXT's Unix underneath, Apple's interface on top.

macOS — NeXT's Unix underneath, Apple's interface on top.

This entry is a stub. It will be written out in full when a Chromix article calls for it. What belongs here: what macOS actually did, why it mattered at the time, and what it made possible afterwards — each claim carrying its own source.

This entry is a stub. Most First Principles entries begin short and deepen only when a new article calls for it — the encyclopedia grows as Chromix writes.