Have you considered open sourcing and selling commercial licenses for integration? I think this is a product that many corporations would love to integrate with. However, as an alone standing product I don't think it adds a lot of value. Something like the business model of draw.io

Very good point, did think about that, but until now still not very sure about business model. At the beginning, when we build it, we want to have a editor for people to easily type and share their Math (even without knowing LATEX). Will definitely consider/think about Integration, or somethings else ...

Thanks.