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I was wondering how I could add go compilation into my project. My main project is kotlin multiplatform and before building that I want to invoke the go compiler to build a shared library that can then be bundled in the resulting jar. Like how a source set has `java` `kotlin` `resources` etc. How would I add a folder corresponding to `go`?

Well, there's nothing stopping you from just creating a `src/main/go` directory (or any other directory, for the Golang source files. In build scripts you could represent it with a dir.

```val golangMainSources = layout.projectDirectory("src/main/go")```
For JVM languages, Gradle has interfaces for representing source sets (e.g. <https://docs.gradle.org/8.7/kotlin-dsl/gradle/org.gradle.api.file/-source-directory-set/index.html?query=interface%20SourceDirectorySet%20:%20FileTree,%20PatternFilterable,%20Named,%20Describable|SourceDirectorySet>), but there's no language agnostic equivalent <https://github.com/gradle/gradle/issues/727>

Did you also want it to appear as a source set in your IDE? If you're using IntelliJ, you can add custom sources with <https://docs.gradle.org/8.7/userguide/idea_plugin.html|the IDEA plugin>. I've added custom source dirs before, but it's not a very ergonomic plugin to use, and now days I just don't bother.