Asp.Net Core 2 Standalone

Hi,

I am building with Dotnet Core 2.0 Release version on Windows 10.   When I build a publish version for Linux, it builds but is it possible to build a single executable instead of a publish directory with all the Dlls.

dotnet publish -c Release -r ubuntu.16.04-x64 --self-contained

1) Is it possible for the builder to at least do tree shaking ?

2) Why is it I still need to run the "standalone" program with dotnet myapp.dll ?

Thank you.