Is there a way to create DLC's for my game/app?

I am creating a mobile app and I really want to create some DLC for it. It will really be a core component to the app and I want the core to be relatively small in size so that users can just download the content that they will need since it will have a very diverse user base. I have found a couple of threads talking about dlc and streaming in assets but, most of them are three and four years old. I did find a plug in on Git as well but it has not been updated since like 4.8 so it doesn’t work with 4.19. I haven’t been able to really find any other information about how to go about doing this. Any other information or help on this topic at all would be really appreciated.

I would really like to be able to add new levels and bps to the app.