Go to SauceLabs and signup for a free trial account.
Create a simple class library and reference Saucery (for NUnit), Saucery.XUnit (for XUnit) or Saucery.TUnit (for TUnit) from NuGet.
Have a look at the ExternalMerlin.NUnit, ExternalMerlin.XUnit or ExternalMerlin.TUnit projects in Github for examples. You can focus on your application and your tests. No need to think about DesiredOptions at all. Integration with SauceLabs is seamless!
Execute your CI job and sit back as the awesome is unleashed!