If you could use notion to build an app/startup , what would you make?

I've been working hard on a framework that converts notion pages to usable apps. I wanted to know what use cases would be most popular.

This would be a purely no code solution (maximum code would be a simple DSL) and the focus is on actually getting an app out there that you've just built in notion.

If anyone is interested in trying out the framework please let me know!! Thank youu

Assume the following integrations are available

1. Sign in with Google, phone number etc
2. Payments from your end users and subscriptions
3. Normal notion pages or content can be used as UI
4. Notion databases are used to model any data with forms and views etc etc
5. Chat between any user in your app

or anything else you want.. just tell me any app idea you have. The technical side would be sorted.