Founded in April 2017, NUKE is a free, open-source build automation system for C#/.NET. It runs cross-platform on .NET Core, .NET Framework, or Mono and integrates natively with all major IDEs like VisualStudio, JetBrains Rider, or VSCode. While builds are bootstrapped with conventional scripts - for instance, build.ps1 or build.sh files - their actual implementation resides mainly in simple C# console applications. This allows IDE features like code-completion, refactorings and debugging to be used as out-of-the-box. One further step is that build steps are actual symbols (expression-bodied properties) and therefore provide superior navigation and type-safety.