Follow along at home: The following is based on the docker images and dotnet core application located at the repository here

problem I had a problem on a new MacBook. I was trying to get C# working in Vim. I found a package online called omnisharp-vim and decided to give it a go.

Docker in Docker (DIND) is a way of accessing a docker container within another docker container. It is commonly used in CI/CD pipelines as it allows the build server to be run in a docker container and allows the build pipeline that is run on the build server to also be run in a docker container.