Create a Developer ID Certificate

To create an app outside of the Mac App Store, you need a "Developer ID Certificate". This can't be created over the App Store Connect API.

1. Head to "Certificates" in the Apple developer portal.

2. Click the blue "Plus" button to start creating a new certificate.

3. Select "Developer ID Application", and click Continue.

4. Upload the CSR generated from the Deskifier dashboard, and click continue.

5. Download the newly created Certificate, and upload it in the Deskifier dashboard.