Cannot get the examle to link as a static library

[ShackGH]

Trying to test this in linux with net8.0, I've changed the .csproj as it complained that it couldn't find the lib path. But now am getting an error when running the app saying as follows;

System.DllNotFoundException: Unable to load shared library 'nativelib' or one of its dependencies. In order to help diagnose loading problems, consider using a tool like strace. If you're using glibc, consider setting the LD_DEBUG environment variable: 
/workspaces/Test/app/bin/Debug/net8.0/linux-x64/nativelib.so: cannot open shared object file: No such file or directory
/workspaces/Test/app/bin/Debug/net8.0/linux-x64/libnativelib.so: cannot open shared object file: No such file or directory
/workspaces/Test/app/bin/Debug/net8.0/linux-x64/nativelib: cannot open shared object file: No such file or directory
/workspaces/Test/app/bin/Debug/net8.0/linux-x64/libnativelib: cannot open shared object file: No such file or directory

The .csproj changes

    <ItemGroup>
        <!-- Generate direct PInvokes for Dependency -->
        <DirectPInvoke Include="nativelib" />
        <!-- Specify library to link against -->
        <NativeLibrary Include="../clib/nativelib.a" />
    </ItemGroup>

looks like it's not trying to link a static lib and is expecting a dynamic lib.