If the machine has dotnet-core runtime installed, you can just download dlls and use this command to execute the runner
dotnet runner.dll --help
or download nuget-package to install like global tool
dotnet tool install --global --add-source path/to/download/folder runner
runner --help
If the machine doesn't have dotnet-core runtime installed, you can don't ha download the stand alone version which contains dotnet-core runtime.