With the release of Isadora 3.1 the Leap Motion Watcher has been moved to the Troikatronix Add-Ons page. As part of making Isadora compatible with Apple silicon (ARM/M1), the Leap Motion Watcher actor has been removed from the main Isadora program and is instead available on the TroikaTronix Add-Ons Page. We did this because Ultra Leap (the manufacturer of the Leap Motion hardware) has not upgraded the macOS library used by this plugin since 2015, and they do not seem to have any plans to offer an Apple silicon version.