@delta I think Olvid has a similar, if not identical, onboarding experience.
@ferrex you are right. #Olvid is pretty well done regarding UX for boarding and getting in contact, largely similar to how #deltachat does onboarding, with interesting differences. Something to learn from (we think in bot directions). Thanks for pointing this out to us!
Do you happen to know any olvid people in the fediverse? It's not an open source project and work with a central transport server, no federation etc, but still interesting to engage with from a UX standpoint.