Oddbean new post about login | logout Cool. I wasnt sure if there was another trick besides OpenGraph. Thats what we use in Nos, but it’s slow and causes the cells to change size which makes scrolling less comfortable.
The only way to trully solve this is to either have a server that can provide image sizes or download everything before showing on the feed. There are hacks like the imeta tag or nip54, but those depend entirely in the writer client including them, which is not ideal for the receiving client. https://github.com/nostr-protocol/nips/pull/521