dk on Nostr: anyone know how holepunch/keet store messages (or generally any data) for p2p async ...

anyone know how holepunch/keet store messages (or generally any data) for p2p async messaging on iOS?

I did a little grokking to try to understand better, but it seems to think there might be a supernode or relay concept like nostr

https://grok.com/share/bGVnYWN5_2ea3655e-8375-4df7-9f8d-5041bfd253b1