Curious to understand more about Web 3 but specifically BTC, Nostr and decentralised application building for example, a block chain, then the layers. BTC/Lighting and the apps ontop. Nostr and how that actually wqorks.

I am hoping to join some communities to help me understand more, to give me some confidence about how to move back into prototyping and build some ideas. My background use to be pure dev, then architecture and using c# and ms tech. But I am looking for something new to give that spark back