In O11 Forge, you can directly upload a demo application for the component you are publishing. In ODC Forge, you have to select the library you want to publish, but you cannot also specify a demo app. So currently the only way to provide a demo application is to publish it separately.
It would be nice if, when publishing a library, you could also optionally specify a demo app for publishing together. This would make finding the associated demo easier and would also give the ODC Forge a clearer structure.