Feedback on my website? Helping people meet IRL and find companions to do activities with

I'm creating a social web app to host and join all sorts of activities around the neighbourhood.

I've been heads down on this vision for the past 6 months in my free time. Which I know is really bad, because I should be asking feedbacks and iterating instead of working in a vacuum and over-delivering.

So here is my attempt of showing it to the world 😅☀️ (also first post in IH), I'd love to get as much feedback as I can on what people think of it!

Take a look: https://socialst.club/learn
The beta: https://socialst.club/beta

Feel free to play around with the app and create your own activity (you do have to login 🙏)

There are some things that makes me nervous when launching this, but hopefully those will be answered as I get actual feedbacks:

• Can I sell this to existing communities?
• Is my target audience too broad?
• How do I get traction? Ideas on marketing strategies I could try?
• Is it a good idea to make this open source?

Thanks in advance. ❤️