If I’ve understood it right, looking at the homepage and the FAQ, Notion is tied to its own cloud service for storing information, and there’s no way to use it

If I’ve understood it right, looking at the homepage and the FAQ, Notion is tied to its own cloud service for storing information, and there’s no way to use it as a standalone app storing data locally and sync information through an unrelated service on my own (using, say, Dropbox for example)? If yes, then this is not for me.