Every FRED plugin ships as a macOS installer with VST3, AU and a standalone app. Apple Silicon (M1 or newer), macOS 12 or later.
Our installers, plugins and standalone apps are signed with an Apple Developer ID and notarised by Apple, so macOS opens them without warnings. If you still see "cannot be opened", the download is probably from before November 2026: fetch the current installer from your download link and run it over the old one.
If a DAW blocks a plugin after installation (Cubase keeps a blocklist), re-enable it in the plug-in manager and rescan. Only if that fails, clear the quarantine flag once in Terminal:
sudo xattr -dr com.apple.quarantine "/Library/Audio/Plug-Ins/VST3/FRED LEGEND 79.vst3" sudo xattr -dr com.apple.quarantine "/Library/Audio/Plug-Ins/Components/FRED LEGEND 79.component"
Replace the name with the plugin you installed.
Your order e-mail contains a licence key. Keep it with your order confirmation. The plugins currently run without activation; the next update adds a one-time activation (three of your own computers, works offline afterwards), and you will enter the same key then. Nothing to do today.
Write to hello@shiitakeaudio.com with the plugin name, your DAW and macOS version. We answer within a day.