Hi everyone! I'm new to Nostr and still figuring out how to use the apps. I have a few questions:

I'm currently testing OpenVibe, Primal, Damu, and Jumble. I don't fully understand how relays work yet. Does each app connect to different relays?

How can I search for content related to topics I'm interested in? Is there a way to find and follow people who post about those subjects?

How do I find content in Portuguese? Most of what I see is in English, and it's been hard to find people posting in PT.

Can anyone help me out? 🤔