Reading Reminders - Spaced Repetition from your notes. Thoughts on landing page + getting beta users?

Hey folks! Checkout what I've recently built: https://www.readingreminders.com/

It's an MVP web app that helps deliver spaced repetition emails (think Readwise) from your notes. It currently only integrates with Notion - but I intend to grow it to other notes providers if there's interest from people using it.

Was looking for general feedback on the landing page, whether the value proposition is clear, and the general flow. Specifically I'm interested in:

1. I think I'll lose a lot of people in the step of "giving access to your Notion notes", since Notion doesn't have an official API this process is a bit manual (I've added instructions but it's not great). Thoughts on mitigating this?

2. Generally, I'm not sure how to proceed now / move forward. I have ~20-30 people who have created accounts but it's not clear to me how many are actually using the service. Should I email them asking for feedback?

3. When do you decided to stop the beta and launch more "publicly"? What does that even entail - just blasts on social media?