This may be the .NET fault, but the "tizen-x86" RID does not work as expected - or at all.
The "tizen-armel" and "linux-x86" RIDs are working, but I can't really use the "linux-x86" RID as it will install into all linux distros as well. Right now I am cheating by manually copying the "tizen-x86" library into the package:
<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<!-- HACK: temporary until the Tizen/.NET Core tooling can understand the tizen-x86 RID as opposed to linux-x86 -->
<ItemGroup>
<None Include="$(MSBuildThisFileDirectory)..\..\runtimes\tizen-x86\native\libSkiaSharp.so"
Condition="Exists('$(MSBuildThisFileDirectory)..\..\runtimes\tizen-x86\native\libSkiaSharp.so')">
<Link>tpkroot\bin\runtimes\linux-x86\native\libSkiaSharp.so</Link>
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
This "works" but I would really, really not need to do this.