Any alternatives for macOS?
ST2U should work for macOS. If it doesn't then give me some details and I'll figure it out.
When I download and unpack the zip the file is a folder rather than a unity package, maybe the package is in the folder and I missed it? I didn't think so but maybe I missed it, hope this clarifies the problem better.
Maybe I understand the issue. ST2U is not a `*.unitypackage` file that you import into your Assets dir but instead a Unity Package.
Once you unzip then you move that whole directory into your Packages folder (right beside Assets).