This update actually wouldn’t have happened without your suggestion — you pushed me to finally implement it. Thank you!

Messages are stored on the server only until the recipient comes online. Once they connect, a 30-second timer starts — after that the message is permanently deleted from the server. There’s no copy left server-side after that point. Since private chats use E2EE, the server only ever sees ciphertext anyway. After delivery, messages exist only locally on both devices. If you want no local record either, you can delete the conversation manually from within the app.

Write to @support directly in ONYX, using the search field, and we’ll discuss this in detail.

that’s a great idea, I’ll consider adding it in one of the upcoming updates.

Fair skepticism, but no - I used AI for the English translation of my post, since I’m not a native speaker.

Just to clarify — E2EE in ONYX is only for private chats. Groups and channels (both built-in and self-hosted) don’t have E2EE, which is actually closer to your point — for groups it’s a deliberate tradeoff for simplicity and reliable sync. So you’re right, for that use case TLS is enough.

Fair point! Yes, Claude was used as a coding assistant throughout the project. That said, every single line went through strict manual review — nothing was blindly copy-pasted into the codebase. All architectural decisions, the crypto stack choices, and the overall design are my own. Claude helped with boilerplate and speeding things up, but the project is not “vibe-coded”.