Onyx is a private, encrypted note-taking application built on the Nostr
protocol with integrated AI productivity tools. Your notes are encrypted
with your keys — no server, no company, no third party can read your content.

Features:

End-to-end encrypted notes using Nostr
AI-powered productivity (cloud and local model support)
Cross-platform (Android, Desktop, macOS)
Self-custodial — you own your data