Build/Program.csx (2 lines of code) (raw):
// https://github.com/JetBrains/teamcity-csharp-interactive
// Changes a verbosity level (Quiet, Normal or Diagnostic)
// #l Diagnostic
// Adds a NuGet package and references to assemblies
// #r "nuget: MyPackage, 1.2.3"
// Adds an assembly reference
// #r "MyAssembly.dll"
// Includes code from a file in the order it should run.
// #load "MyClass.cs"
#load "Tools.cs"
#load "Program.cs"