How to create bundle for Mac App Store?

Hi there,
a few years ago it was possible to just sign your monogame app for release on Mac app store from within Visual Studio Mac. Since a while (at least 2 years) the “Mac Build” and “Mac Signing” settings aren´t available on a standard monogame-project created on a mac.
Is there any way to create a bundle for the Mac App Store via Visual Studio or maybe via external tools or do I have to create a publish directory via “dotnet -publish…” and copy the plist-files in there as well and use some external code signing tool to create the bundle?
Thank you,