First off, congrats on the release!! Super excited!

The macOS pkg on the download page is not signed which means it can't be "double-clicked" on macOS, you have to right click and choose Open. Also, signing in general is goodness :). I know we did it for the .NET Core SDK package, so I might be able to point you at folks who have done it (email is [github user name]@microsoft.com)

Steps to reproduce

1. Download macOS PKG from repo home page
2. Run pkgutil --check-signature ~/Downloads/powershell-6.0.0-alpha.9.pkg

Expected behavior

Something like:

Package "powershell-6.0.0-alpha.9.pkg":
   Status: signed by a certificate trusted by Mac OS X
   Certificate Chain:
    1. blah blah blah...

Actual behavior

Package "powershell-6.0.0-alpha.9.pkg":
   Status: no signature

Environment data

Not relevant, not an issue in PowerShell itself :)