Displays
On-device multiple displays on a Mac
multiple displays is implemented in the native Swift app, not as a web view in the notch. The companion can follow the display you choose instead of cloning every screen.
Last updated 2027-06-12
Why native matters
A real Mac utility can follow Spaces, displays, and system appearance. multiple displays is part of that host.
What stays in-tree
First-party multiple displays lives in the app. Third-party packages cannot load unsigned code.