Mac Code Signing and Notarization

To distribute a Mac app to other people it needs to be code signed and notarized by Apple, otherwise macOS will refuse to open it. This needs Xcode’s command line tools, so it can only be done on a Mac.

Eto.Forms can sign, notarize and package your app into a .dmg as part of a release build, for both the Mac64 and macOS platforms:

1. Get an Apple Developer account.

2. Install your Developer ID Application certificate in your keychain. On GitHub Actions, apple-actions/import-codesign-certs works well.

3. Create an app-specific password for your Apple account.

4. Store your notarization credentials in the keychain under the name AC_PASSWORD:

   Shell Copy

   xcrun notarytool store-credentials "AC_PASSWORD" --apple-id "<your Apple ID>" --team-id "<your Team ID>" --password "<app-specific password>"

5. Turn it on in your .csproj:

   XML Copy

   <PropertyGroup Condition="$([MSBuild]::IsOSPlatform(OSX)) AND $(Configuration) == 'Release'">
     <EnableCodeSigning>True</EnableCodeSigning>
     <EnableNotarization>True</EnableNotarization>
     <EnableDmgBuild>True</EnableDmgBuild>
   </PropertyGroup>

6. Build:

   Shell Copy

   dotnet build -c Release

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