The NDK libraries are actually pretty good for rust and js. We need tools for the services around content warnings / content discovery / pluggable algorithms. Right now the way user and content search works on relays isn’t good. And we’ve got a kind of broken system for looking up what relays have an npub’s content. Purplepag.es is a stop gap, but most clients don’t use it and pablo doesn’t have incentives to maintain it as a critical service.