Problem:
When I try to import my binary module it fails to load because it can’t find a dependency.
Import-Module: Could not load file or assembly 'System.IO.Abstractions, Version=12.0.0.0, Culture=neutral, PublicKeyToken=96bf224d23c43e59'. The system cannot find the file specified.

Solution:
Open your csproj for your module and add the following to a PropertyGroup element.
<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
For my project I added to the first one I found.
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<AssemblyName>Trackyon.PSBuild</AssemblyName>
<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
</PropertyGroup>
Now I can import my module as expected.
