There are 87 repositories under nostr topic.
a truly censorship-resistant alternative to Twitter that has a chance of working
nostr.net - awesome-nostr is a collection of projects and resources built on nostr to help developers and users find new things
The Bitcoin Lightning Browser extension that connects to different wallet interfaces and brings deep lightning integration to the web
Nostr console is an open-source twitter-like social network, direct chat app and group chat all bundled into one program. Built on the decentralized Nostr protocol.
Nostr protocol implementation, SDK and FFI
List of Nostr clients and whether they support the different features/NIP's or not