I heard about this in F-Droid’s latest blog post.
It is based on the Bramble protocol and is compatible with Briar.
It removed mesh-networking features of Briar and added a couple new ones:
- voice messaging
- ML-KEM (post-quantum cryptography)
- disappearing messages
More technical details are shared on their blog.
Sources are on Github https://github.com/zerionproject/Zerion



This looks like a really cool project with a lot of well selected components for good security/privacy, but it also appears to be significantly vibe-coded as there are only 2 contributors and one is Claude. I’d really appreciate some sort of validation audit from a trusted 3rd party before using it seriously.
Hopefully it can collaborate with existing privacy focused orgs as this could be very useful for journalists and other folks needing robust communications and secure vaults for sensitive data.
The S in AI stands for security
So many of these have popped up in the last week it makes me think there is a really good, human-coded privacy tool out there that was just released, and this noise is to cover it.