Made a keys-only encrypted notes app on Nostr — Android testers welcome

Hey everyone. I built a small notes app that runs entirely on Nostr — there's no backend of mine, no sign-up, and no account. Your keys are the whole identity, and every note is encrypted with NIP-44 before it ever leaves the device, so relays only ever see ciphertext.

The iOS build is already out, and I'm now opening up an Android track for anyone who wants to kick the tires and tell me what breaks.

It's fully open source (MIT) if you'd rather read the code first: github.com/AlexeyYuPopkov/nostr_notes

Feedback, criticism, and PRs all very welcome. Happy to go into detail on the relay/sync design in the comments if that's interesting to anyone.