Displays
multiple displays for Mac notch developers
If you are extending NotNotch, multiple displays is a host surface or a documented constraint. The companion can follow the display you choose instead of cloning every screen.
Last updated 2027-06-13
Host rules
Packages declare placements in manifest.json. multiple displays may be openTab, liveActivity, or a first-party module.
Do not disable library validation
Unsigned third-party binaries stay manifest-only. That is intentional.