[grumdan]

In addition, their server-side code is open-source and they claimed that federation support is something they are considering to add: https://github.com/wireapp/wire/issues/160

Overall, I'm also not a big fan of Signal's hostility to federated protocols (https://signal.org/blog/the-ecosystem-is-moving/), so I'm more optimistic about Wire in the long run.

[kiliankoe]

Just want to add onto this that pretty much everything Wire makes is open source. The backend (written in Haskell no less, which continues to amaze me), the desktop app and the mobile apps.