UHF X11 turns Apple Vision Pro into a spatial X11 display server

Category: Apple
Status: discussion
Sources: UHF X11, discussion
Summary: Ian Finder released UHF X11, a visionOS app that runs a full X11 display server on Apple Vision Pro. X11 clients on remote or legacy machines connect over standard TCP and render each window as a native spatial window, with rootless windowing, pixel-perfect output with optional CRT effects, experimental GLX/OpenGL, and MIT-MAGIC-COOKIE-1 authentication. It is a paid App Store app, not open source. The thread reached the HN front page (188 points).
Why it matters: It maps a decades-old network display protocol onto a spatial-computing headset, letting existing X11 software run as floating windows without per-app porting.