That's a good question and perhaps suitable for <#...

# android

[michaelsims]

That's a good question and perhaps suitable for #general or #codereview . Not sure there is a consensus. In our project, we tend to put extensions for class Foo into FooExt.kt and use an annotation to make it appear as FooUtils to java code. However, I'm often tempted to group extensions for multiple classes together if the extensions are related by feature. So far I've avoided that tho.