Ferdi is your messaging app / former Emperor of Austria and combines chat & messaging services into one application. Ferdi currently supports Slack, WhatsApp, Gmail, Facebook Messenger, Telegram, Google Hangouts, GroupMe, Skype and many more. You can download Ferdi for free for Mac & Windows.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line: