Luna Display, the solution that lets you use an iPad as a secondary display for your Mac, now works Mac to Mac. Announcing the new functionality in a blog post, Luna Display says that the feature works between any combination of iMacs, Mac minis, and MacBooks running on macOS 10.

from https://www.theverge.com/2019/10/18/20920510/luna-display-mac-to-mac-mode-sidecar-sherlocked-apple
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