MultiNet is a Docker Container project, intended to provide legacy and current .NET versions in a Docker Container for use in building, testing, and publishing libraries and executables.
As of 7.0.0, both amd64 and arm64 are supported.
The Docker Container that is built as a result of the Dockerfile can be found here.
You can find a working example, which uses the container here.
Source Code for the example is here.