I hate to have to bring this up, but please don't advertise source available software as being open source. You have a cool product and making the source available is a good thing, you don't need to lie about the extent to which you're opening it up.
We're still discussing this. We do have a plan to open what's currently built entirely, and later build proprietary features inside an /ee dir.
You can read more about our strategy on our company's open handbook: https://github.com/watermelontools/public-handbook/blob/main...