Displays

multiple displays on macOS 27

NotNotch is meant to run multiple displays on macOS 27 (Darwin 27) while still supporting macOS 14. The companion can follow the display you choose instead of cloning every screen.

Last updated 2027-06-04

Runtime vs SDK

Local builds may still use the macOS 26 SDK in Xcode 26. The goal is a clean run on macOS 27, not a 27-only app.

What stays the same

multiple displays should keep the same user-facing behavior. The companion can follow the display you choose instead of cloning every screen.

Back to the blog