As far as I understand Jitsi Meet uses a server to coordinate and merge WebRTC video streams but it is fully E2E encrypted and decentralized as [you can run your own instance](https://jitsi.github.io/handbook/docs/community/community-instances/). Much like Nostr versus other truly P2P alternatives.

I don't think you can transfer arbitrary files or payments with Jisti, though.

bitcoin

Keet by Holepunch

cryptocoin

How is Keet different to Jitsi Meet? In other words, how is Holepunch different than WebRTC (which is already open and standardized)?