Sorry if this is a basic question, but I can't find a real answer in the documentation. Using the example of a custom user FBX or a prefab with an FBX dependency. What is the file format present here: is it making asset bundles or is it a new file format? What my real question comes down to is, does a piece of UGC need to be built per platform? We have a UGC solution already in place, but it just using asset bundles and S3. The biggest pain point is that you have to have the user build it for every platform, which means we're already at 4 bundles per UGC... and raises big questions about reaching consoles in the future, since users wouldn't be able to get say the Xbox module for Unity. I'm ASSUMING this is meant to provide a better solution to that, but I can't find it written anywhere. If this new package does solve the building per-platform issues, are you required to host the files on Unity's services, or can you use the new format, but use it with say.. Amazon's S3?