I think the original question could be about the protocol. Why not use Matrix as the protocol for the project? No one is doing the work to bring a Matrix-based Discord alternative because they’re a) on Discord b) creatin IRC face-lifts like Element c) refusing to quit IRC d) making projects with bespoke protocols like this one. It’s incredibly frustrating.

Qtox should work? It’s not a very good chat software and a bit cumbersome, but it allows direct file transfers.

Sad to see 'cause it feels like we need Pirate Parties more than ever.