macOS will show a warning the first time you open Clipper. Here's why, and how to get past it.
Apple hasn't reviewed or "notarized" Clipper yet, so macOS will warn that it can't verify the app is free of malware and may call it harmful. That message appears for every app Apple hasn't checked, whether or not anything is actually wrong with it. Only install apps from sources you trust, and decide for yourself.
Apple could not verify “Clipper” is free of malware that may harm your Mac or compromise your privacy.
DoneMove to TrashClick Done (not Move to Trash), then follow the steps below.
Prefer Terminal? Run this once instead of steps 2–4: xattr -dr com.apple.quarantine /Applications/Clipper.app
Apple only verifies apps from developers who pay for a yearly Developer Program membership. Clipper is an independent app and doesn't have that yet. Updates installed from inside Clipper normally don't show this warning again.