[asdfasdf1231]

end to end without self hosted open source servers have (among others) a tradeoff: either opaque server you can't trust at all, or no offline messages. Which one you decided on?

[garyhbutton]

I was thinking of making the client code open source (eventually) so that users can know that their privacy is respected

[asdfasdf1231]

So you choose opaque server. At least do not hide the offline validation as deep as whatsapp and others do.

also work with linux/android distros do distribute the built from source client. otherwise, it's just more of the same