Mac
If your browser warns about the download, choose Keep. In Chrome or Edge, open the ⋮ or … menu beside the download first.
- Open the downloaded Oriel.dmg file.
- Drag Oriel into the Applications folder, then eject the disk image.
- Open Oriel from Applications. A message will say that Apple could not verify it. Click Done.
- Open System Settings, choose Privacy & Security, and scroll down to Security.
- Next to the message saying Oriel was blocked, click Open Anyway, then enter your Mac password.
- Open Oriel again, and click Open when asked.
If your Mac says Oriel “is damaged and can’t be opened”: the app isn’t damaged. macOS shows this for some downloaded apps that have no certificate. Open Terminal (in Applications → Utilities), paste this line and press Return, then open Oriel as usual:
xattr -dr com.apple.quarantine /Applications/Oriel.app