What is a terminal multiplexer?
It lets you switch easily between several programs in one terminal,
detach them (they keep running in the background) and reattach them to a different terminal.
And do a lot more.
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: