Progress:

Coop (NIP-17 client) for Android. Fully adapts Material 3 (Expressive), built with Kotlin Multiplatform. Still WIP, but I've made good progress, maybe a release later this month.

About the features, I want to keep Coop simple, a dumb app just for messaging, so it will only support NIP-17 and NIP-4e later, nothing more.

Thanks @Vitor Pamplona and @Yuki Kishimoto for helping me.

https://video.nostr.build/4efafcb39db983487d5689ce982006c80fe78688a510d49af923b9fe344568a8.webm