But it does have to do with Nostr, when clients need to sacrifice in various ways to keep devices from melting…
“Mobile data friendly: Only text is displayed, no videos and no pictures. It also attempts to keep relay connections to a minimum, fetch events only from their respective outbox and not refetch locally cached events.”

GitHub
GitHub - dluvian/voyage: Lightweight nostr client for Android
Lightweight nostr client for Android. Contribute to dluvian/voyage development by creating an account on GitHub.