nim-libp2p Universal Connectivity App

vac:p2p:ift:2025q3-nimlibp2p-universal-connectivity-app

Realtime highly decentralised chat app.

Description §

Create an example chat application that demonstrates libp2p features using gossipsub for messaging, and WSS, Quic, and TCP transports. This app should be published at the libp2p/universal-connectivity repository. A future commitment might add support of Kad-DHT to discover nodes, and additional transports like WebTransport/WebRTC/WebRTC-direct as transports (once they’re available in nim-libp2p).

Task List §

Chat §

• fully qualified name: vac:p2p:ift:2025q2-nimlibp2p-universal-connectivity-app:chat
• owner: gabe
• status: 100%
• start-date: 2025-07-12
• end-date: 2025-08-22

Description §

Using either directchat.nim or chat2, implement a chat application that can interop successfully with other implementations available at libp2p/universal-connectivity.

Deliverables §

• vacp2p/universal-connectivity#1 feat: add nim peer
• libp2p/universal-connectivity#306 feat: add nim peer

File Exchange §

• fully qualified name: vac:p2p:ift:2025q2-nimlibp2p-universal-connectivity-app:file-exchange
• owner: gabe
• status: out of scope
• start-date: ----
• end-date: ----

Description §

Allow sending/receiving files. Must react to messages sent of the file exchange topic.

Deliverables §

• Basic UI - Receive file message
• Allow sending file (maybe with a chat command /file path/to/file)
• Interop
• None of the other implementations send/receive files and/or their code remains incomplete. Changing this task to Out of Scope until universal connectivity app specs indicate that file support is to be implemented