I’m very glad you expressed an interest in trying to do this, as I ran into an issue here or there during development of the Use SQLite extension which required some enhanced capabilities in the extension system, including but not limited to support for native libraries (such as the SQLite engine) that .NET assemblies can reference using P/Invokes. Sufficed to say, thank you, @donvnielsen . This process you kicked off has made extensions in Grindstone Pro more robust that they otherwise would have been upon release.
Now, go get the preview release and have fun with the awesome power of extensions and NuGet!