Making JetBrains Rider work with Nix and devenv

A few weeks (even months) ago I had a problem that made JetBrains Rider stop working properly on my environment. I figured out that the problem was due the way devenv¹ sets up the environment.

Using the dotnet module on devenv is trivial, you just need to enable it:

{
  languages.dotnet.enable = true;
}

This will set the $DOTNET_ROOT environment variable with the root path of your chosen .NET SDK. In this case, you need to set the following options on Rider:

• Toolset and Build -> .NET CLI executable path: <$DOTNET_ROOT>/dotnet
• Toolset and Build -> MSBuild version: <$DOTNET_ROOT>/sdk/<version>/MSBuild.dll